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.

As Harvard developmental psychologist Robert Kegan, who has studied Bridgewater, says, in most work places everyone is working two jobs. The first is whatever their actual job is; the second consists of managing others' impressions of them, especially by hiding weaknesses and inadequacies - which is an enormous waste of energy.

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

I've learned that each mistake was probably a reflection of something that I was (or others were) doing wrong, so if I could figure out what that was, I could learn how to be more effective.

Nature is a machine. The family is a machine. The life cycle is like a machine.

Meditation helps you stay in a calm, clear-headed state so that when challenges come at you, you can deal with them like a ninja - in a calm thoughtful way. When you're centered, your emotions are not hijacking you.

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.