I am an old man and have known a great many troubles, but most of them have never happened.
There are two times in a man's life when he should not speculate: when he can't afford it, and when he can.
It's easier to fool a man than to convince him he was fooled.
It is curious that physical courage should be so common in the world, and moral courage so rare.
A man who carries a cat by the tail learns something he can learn in no other way.
I don't like to commit myself about heaven and hell - you see, I have friends in both places.
The lack of money is the root of all evil.
Supposing is good, but finding out is better.
The two most important days in your life are the day you are born, and the day you figure out why.
The two greatest characters in the 19th century are Napoleon and Helen Keller. Napoleon tried to conquer the world by physical force and failed. Helen tried to conquer the world by power of mind — and succeeded!