The happiness of this life depends less on what befalls you than the way in which you take it.

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

A little more persistence, a little more effort, and what seemed hopeless failure may turn to glorious success.

Love, we say, is life but love without hope and faith is agonizing death.

The recipe for perpetual ignorance is: Be satisfied with your opinions and content with your knowledge.