Learn from the mistakes of others. You can never live long enough to make them all yourself.

I think and think for months for years. Ninety-nine times the conclusion is false. The hundredth time I am right.

Half the failures in life come from pulling one's horse in when he is leaping.

Don't try to be brave all at once. Take it in steps.

A life spent making mistakes is not only more honorable but more useful than a life spent doing nothing.