There are four elements to become great at anything:

1. Acquiring domain knowledge
2. Motivation or sustained energy
3. Critical feedback
4. Purposeful practice (what we call simulation)

Most training is heavy on domain knowledge and lacks daily mentoring and the structure and tools to purposely practice. This is insufficient.

--Mike Bellafiore

"I only want to hear complaints about food that's sent back to the kitchen. I only learn from the complaints."

--Gordon Ramsay

"I would say we are, generally, elephant hunters. We’re not buying something at 100 because we think it’s worth 120 and then trading out of it. We’re looking for very large profits." -- Bill Ackman

When people are free to do as they please, they usually imitate each other. --Eric Hoffer

I don't have a problem with caffeine, I have a problem without caffeine.

Fat Tails 

I don't have a problem with caffeine, I have a problem without caffeine.

It definitely helps!

Experience teaches only the teachable. --Aldous Huxley

Don't make your stop-loss a loss target

Consider how hard it is to change yourself and you'll understand what little chance you have in trying to change others. --Benjamin Franklin

If you can't bear to take a small loss, you will never give yourself an opportunity to be around when a big winning idea comes along... --Price Headley