Develop into a lifelong self-learner through voracious reading; cultivate curiosity and strive to become a little wiser every day. - Charlie Munger

In my life, I avoid things that are stupid, evil, or make me look bad in comparison with someone else.

The third helpful notion is that it is not enough to think problems through forward. You must also think in reverse, much like the rustic who wanted to know where he was going to die so that he’d never go there. Indeed, many problems can’t be solved forward. And that is why the great algebraist Carl Jacobi so often said, “Invert, always invert,” and why the Pythagoreans51 thought in reverse to prove that the square root of two was an irrational number.

The best armour of old age is a well spent life preceding it.