Do You Have Passion for What You Do?

People say you have to have a lot of passion for what you're doing. And the reason is, is because it's so hard that if you don't, any rational person would give up. I mean, think about what Steve Jobs is doing. Like, he was worth $100 million at 22 years old,. 24 years old, something like that. He made more money before his 25th birthday than most people make in their entire lives. So they clearly love what they're doing. Even if it's really hard. The ones that didn't love it quit because they're sane. Right? Who would want to put up with this stuff if you don’t love it?