Inquiry saves a man from mistakes.

Races are not won by the fastest athletes. Fights are not won by the strongest men. But the races are won and the fights are won by those who want to win most of all.

I owe my success to having listened respectfully to the very best advice, and then going away and doing the exact opposite.

Do not feel certain of anything.

Sometimes when you innovate, you make mistakes. It is best to admit them quickly, and get on with improving your other innovations.

In school, you are given the lesson first. One the street, you're given the mistake first and then it's up to you to find the lesson, if you ever find it.

Feelings of worth can flourish only in an atmosphere where individual differences are appreciated, mistakes are tolerated, communication is open, and rules are flexible. The kind of atmosphere that is found in a nurturing family.

The opposite is beneficial; from things that differ comes the fastest fairest attunement; all things are born through strife.

The successful man will profit from his mistakes and try again in a different way.

Mistakes are a fact of life. It is the response to error that counts.