Most of what people call conviction is just a willful disregard for new information that might make you change your mind. Charlie Munger says you could only have an opinion when you can state the other side's position as well as they can. There are so many things in life that we think are true because we desperately want them to be true. Anything forward looking is subject to being swayed by your desire to have a pleasant life.
There are only a handful of financial rules, ideas, and observations that really move the needle -- and explain the majority of what you need to know to do better with your money.
I could have narrowed this down to 10, but I had fun with this thought experiment, so here are my top 30 rules of the money game.