Take the word Liberty from human speech and all the other words become poor, withered, meaningless sounds - but with that word realized - with that word understood, the world becomes a paradise.

There is no slavery but ignorance.

Most people can bear adversity. But if you wish to know what a man really is, give him power.

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

There is no harmony between religion and science. When science was a child, religion sought to strangle it in the cradle. Now that science has attained its youth, and superstition is in its dotage, the trembling, palsied wreck says to the athlete: "Let us be friends."

Every church that has a standard higher than human welfare is dangerous.

We can be as honest as we are ignorant. If we are, when asked what is beyond the horizon of the known, we must say that we do not know.