Don't speculate unless you can make it a full time job.

Nobody ever lost money taking a profit

Whatever men attempt, they seem driven to overdo. When hopes are soaring, I always repeat to myself that two and two still make four.

Only as you do know yourself can your brain serve you as a sharp and efficient tool. Know your own failings, passions, and prejudices so you can separate them from what you see.

If a speculator is correct half of the time, he is hitting a good average. Even being right 3 or 4 times out of 10 should yield a person a fortune if he has the sense to cut his losses quickly on the ventures where he is wrong.

One of the secrets of a long and fruitful life is to forgive everybody everything everynight before you go to bed.

A man can't retire his experience.