Life is like a giant smorgasbord of more delicious alternatives than you can ever hope to taste. So you have to reject having some things you want in order to get other things you want more.

To make money in the markets, you have to think independently and be humble.

Be wary of the arrogant intellectual who comments from the stands without having played on the field.

Once you accept that playing the game will be uncomfortable, and you do it for a while, it will become much easier (like it does when getting fit). When you excel at it, you will find your ability to get what you want thrilling.

Ask yourself whether you have earned the right to have an opinion. Opinions are easy to produce, so bad ones abound. Knowing that you don't know something is nearly as valuable as knowing it. The worst situation is thinking you know something when you don't.

Sometimes we forge our own principles and sometimes we accept others' principles, or holistic packages of principles, such as religion and legal systems. While it isn't necessarily a bad thing to use others' principles - it's difficult to come up with your own, and often much wisdom has gone into those already created - adopting pre-packaged principles without much thought exposes you to the risk of inconsistency with your true values.

In order to get past disagreements, you just can't have one person with power decide. In other words, so just because I'm a boss, it would be terrible if I then said, "Okay, we're gonna go do this." That's why, after that thoughtful disagreement, there has to be a process of an idea meritocracy. That means okay, now you have to vote, not that the decision resides with power. And then you vote and move beyond it.