Mental Models for the rest of your live

"The man who is in need of a new thinking tool, but hasn't yet acquired it, is already paying for it."

The swiss army knife approach

The man with a swiss army knife realizes that different problems require different tools and is equipped and ready for applying the best tool for the given situation.

Make Friends with the eminent dead

"The man who doesn't read good books has no advantage over the man who can't read them"

"Make friends with them"

"If I have seen further it is by standing on the shoulders of giants"

Invert, always invert

How to be miserable: do drugs, be envious, show resentment
How to fail: be unreliable, learn everything yourself, give up early, don't ever invert

Compounding

Crush your cherished beliefs

To be continued