It is a curious fact that of all the illusions that beset mankind none is quite so curious as that tendency to suppose that we are mentally and morally superior to those who differ from us in opinion.

Do your work with your whole heart, and you will succeed - there's so little competition.

If you want work well done, select a busy man - the other kind has no time.

Faith is the effort to believe what your common sense tells you is not true.

The only foes that threaten America are the enemies at home, and these are ignorance, superstition and incompetence.

Some men can get results if kindly encouraged, but give me the kind that do things in spite of hell.

He who influences the thought of his times influences the times that follow.