The Conversation

Kim Chakanetsa travels to the Global Philanthropy Forum conference in California to speak to two philanthropists and finds out why they give so much money away.Amy Rao grew her Silicon Valley tech company, Integrated Systems Archive, during the dotcom bubble of the 1990s and says she started giving large amounts of money to causes close to her heart as soon as she launched the business. Amy grew up in a household where helping others and entrepreneurship were a priority, even when they were broke her parents still helped those less fortunate in the community. Today, Amy's philanthropy is focussed on human rights and the environment and she is the chair of the Human Rights Watch Voices for Justice events in San Francisco and Silicon Valley, and is on the board of the Schmidt Family Foundation, as well as being the president of the 11th Hour Project.It took determination and defiance for Tsitsi Masiyiwa and her husband Strive Masiyiwa to build their telecoms empire following a lengthy legal battle with the Zimbabwean government who had a monopoly. Tsitsi also grew up in a community where helping others was important. She says as soon as she realised they might make money with their company, Econet, she committed to giving some of it away because "you can only sleep in one bed, drive one car and have one home". Today Tsitsi is the co-founder and co-chair of the Higherlife Foundation, which has sent tens of thousands of children to school and university in southern Africa. (Photo: From left, Amy Rao, Kim Chakanetsa and Tsitsi Masiyiwa. Credit: Noah Stout of Stout Film)

Kim Chakanetsa quizzes two heavy metal bass guitarists about their roles in their bands, how they learnt to head-bang, and juggling the music with their day jobs.Doris Yeh tours all over the world with best-selling Taiwanese metal band Chthonic. She says she only got into heavy metal by accident, but now loves it. Being the only woman in the band can have its down-sides - at performances her male colleagues used to expect her to get changed in the toilet while they occupied the one dressing room! However, Doris learnt to assert herself, and says when she gets on stage and starts playing, she is just excited to be able to treasure that moment with the audience. Slovenian Sasha Zagorc formed the heavy metal/hard rock band Hellcats with her sister ten years ago. She's always been a metal-head so just wears her own black leather clothes in their videos and on stage. Initially the band had to deal with quite a lot of criticism as the first all-female band on the Slovenian metal scene, but they just kept going and now have fans all over the world. For Sasha having a band provides much needed relaxation, and she loves going on tour with her best friends.(L) Photo: Sasha Zagorc. Credit: Simon Podgorsek. (R) Photo: Doris Yeh. Credit: CHTHONIC.

When Australian mechanical engineer Marita Cheng got to university, she was shocked to discover that only five out of 50 students on her course were female. She responded by starting Robogals - an organisation that goes into schools and teaches robotics to girls as a way of encouraging them into choosing engineering as a career. Having won multiple awards and starting her own robotics company, Marita is now an inspiring role model herself, and has developed a robot arm that can aid people with mobility issues.Lebanese civil engineer Nisrine Chartouny oversees miles of tunnelling on London's ambitious Crossrail project. Her work requires precision, skill and very long hours. Nisrine joined her company Bechtel 10 years ago, and says she and her husband put off having babies for five years because she was enjoying her job so much. Now a mum of one, she was able to go back to work four days a week and wants the rest of the industry she is so passionate about to embrace flexible working, so that it can hold on to women like her.(Photo: Marita Cheng (L). Credit: University of Melbourne, Australia. Nisrine Chartouny (R). Credit: Bechtel)

Cat Hulbert started gambling for a living 40 years ago. A blackjack player in her 20s, she became so skilled at winning money from casinos, she was soon very unpopular with them all around the US. Cat took up poker in the 1980s, and was one of the first women to break into the ranks of professional card players. The Game Show Network called her "the best female gambler on earth." Now retired, Cat says she is not sure that she would legalise gambling in a state that did not have it, as it can ruin so many lives.Celina Lin, who has been described as 'China's Queen of Poker', was born in Shanghai and moved to Australia as a child. Always a gaming enthusiast, she got into poker by accident, but quickly became a skilled online player and has been employed by the company PokerStars for the last eight years. She is now based back in China, playing high-level poker tournaments in the casino city of Macau. Celina has won the prestigious Red Dragon cup twice, and views poker not as a game but as an extremely demanding mind sport.Image: Celina Lin (L) and Cat Hulbert (R) (Images courtesy of Celina Lin and Cat Hulbert)

Megan Harrington-Johnson doesn't let worry and doubt stop her when she wants to complete a 13km open-water swim. The South African endurance swimmer has swam in shark infested waters, even though she's petrified of them and has had a close shave with a Great White. Megan says she's often the only woman on the team, but thinks it's fear rather than ability that holds other women back from doing what she does. Sweating in the water is an issue and Megan talks about the importance of staying hydrated and eating lots of calories to get through a big swim. Manu Vilaseca started by running 5km races and now does 160km ultra-marathons. The lengthy courses are rarely on flat terrain, they're normally up and down mountains and the conditions can be unpredictable, but Manu, who's from Brazil, says even when her mind is telling her to stop she knows how to talk herself round and get through. The competitions might be punishing on Manu's body, but she says she loves the feeling of total exhaustion and almost craves the pain she will feel afterwards so she knows she's pushed herself to the limit.Photo: (L) Megan Harrington-Johnson. Credit: Charl Rorich. Photo: (R) Manuela Vileseca. Credit: Bernardo Rodrigues.

Cathy Bramley is the UK author of best-selling romantic comedies such as Appleby Farm and The Plumberry School Of Comfort Food. Cathy has spent most of her working life in marketing, however reading has always been a passion of hers, and she says one particular book inspired her to take up writing herself. Four years ago she went for it and self-published her first novel. She was then taken on by a publisher and was able to give up her day job to write full-time in 2014.Cheryl Ntumy has written 11 books, including romance novels for a South African audience and young adult fiction. She grew up surrounded by books and has been writing stories since she was very young. Originally from Ghana, Cheryl now lives in Botswana and her characters often reflect her feelings and experiences of being an outsider. She says writing isn't really taken seriously as a career in Botswana, so it has been a challenge to keep going at times. Photo credit: (L) Cathy Bramley and (R) Cheryl Ntumy

Jacquie Davis began her career with the British police, but soon moved into security and close protection. This was in the 1970's when Jacquie says it was "very lonely" being the only woman in the industry. Today Jacquie runs the security and risk management firm Optimal Risk and her clients include the ultra-rich and famous; she's dealt with everything from hostage situations to screaming fans and celebrity tantrums. Denida Zinxhiria grew up in Albania during a time of social upheaval where it was commonplace to hear bombs and bullets in the street. As a child she remembers her grandmother covering her to protect her from gunfire and says that incident sparked an interest in keeping people safe. Denida worked her way up through private security in Greece and now runs Athena Academy, a security company that trains female bodyguards.Photo: Jacquiee Davis. Credit: Aaston Parrot. Photo: Denida Zinxhiria. Credit: N/A.

Maria Toorpakai grew up in the traditional tribal region of Waziristan, and from an early age decided she would rather play with the boys than stay inside with the girls. So she burned her 'girly' clothes and cut her hair short so she could run and jump and wrestle outside. When her family moved to Peshawar Maria picked up a squash racket for the first time, and by the age of 16 was Pakistan's number one player. Her success led to death threats however, and she was forced into hiding and playing only in her bedroom. Maria now lives and trains in Canada. Her book A Different Kind of Daughter: The Girl Who Hid From the Taliban in Plain Sight (with Katharine Holstein) is out now.Malaysia's Nicol David has dominated women's squash since 2005. She was the World No 1 woman player for an unprecedented 9 years. Nicol says her greatest win was her first world title when she was 22 in Hong Kong, which came as a complete surprise. She started playing squash with her sisters to work out her hyperactivity, and quickly became a junior champion. She says squash is like 'physical chess' - you are always thinking ahead by two or three moves.

Michelle Payne is the first ever female jockey to win the Melbourne Cup­ and is the youngest of ten children of Paddy and Mary Payne who grew up in central Victoria, Australia. Mary died in a motor vehicle accident when Michelle was only six months old, leaving Paddy to raise the children as a single father. Michelle entered racing aged 15, the eighth of the Payne children to do so. She won in her first race at Ballarat, riding 'Reigning' a horse trained by her father. Michelle’s book “Life as I know it” is published by Melbourne University Press. Jadey Pietrasiewicz grew up in a small town in The Netherlands and started horse racing by accident at 14. Jadey started off as an amateur and turned professional in 2013. She won the HH Sheikha Fatima Ladies World Championship in Abu Dhabi in November 2014 and has ridden worldwide on both Thoroughbreds and Arabians (100+ wins). She is currently riding in Australia, based with Ellerton Zahra Racing.(L) Michelle Payne. Credit: Racing Victoria. (R) Jadey Pietrasiewicz. Credit: Wouter Tijtgat.

Phillippa Yaa de Villiers is an award winning South African writer and performance artist. Phillippa, who is mixed race, was adopted as a baby by a white couple but did not learn of her adoption until she became involved in anti-apartheid politics whilst attending University. Negotiating this newfound racial identity has informed much of her writing. She discusses her inspirations and the journey to becoming a writer, why she found it hard to initially call herself a poet and how South Africa is a country blossoming with poetry.Imtiaz Dharker is a poet, artist and film maker. Born in Pakistan, Imtiaz was brought up in Scotland before she eloped to India aged 20, becoming estranged from her family. She feels that it is important that poets don't get too comfortable in any one place and describes forging her life in 'the cracks in-between'. Imtiaz picks up words that inspire her poetry from her surroundings, sometimes overheard, she jots these down on a paper napkin or whatever is to hand. She now lives in the UK and in 2014 she was awarded the Queen's Gold Medal for Poetry. Her advice to aspiring poets is to read a lot and find your own voice.Image credit (l) Imtiaz Dharker (Melanie Brown/BBC) and (r) Phillippa Yaa de Villiers