There is no slavery but ignorance.

The man who does not do his own thinking is a slave, and is a traitor to himself and to his fellow-men.

In making up my mind as to what Mr. Lincoln really believed, I do not take into consideration the evidence of unnamed persons or the contents of anonymous letters; I take the testimony of those who knew and loved him, of those to whom he opened his heart and to whom he spoke in the freedom of perfect confidence.

Happiness is not a reward - it is a consequence. Suffering is not a punishment - it is a result.

The idea that there is a God who rewards and punishes, and who can reward, if he so wishes, the meanest and vilest of the human race, so that he will be eternally happy, and can punish the best of the human race, so that he will be eternally miserable, is subversive of all morality.

This, in my judgment, is the highest philosophy: First, do not regret having lost yesterday; second, do not fear that you will lose tomorrow; third, enjoy today.

I do not believe in loving enemies; I have pretty hard work to love my friends.