Music was born of love. Had there never been any human affection, there never could have been uttered a strain of music.

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."

A man is not moral because he is obedient through fear or ignorance. Morality lives in the realm of perceived obligation.

What light is to the eyes - what air is to the lungs - what love is to the heart, liberty is to the soul of man.

Whoever saw an angel barefooted?

Heresy is a cradle; orthodoxy a coffin.

If a man really believes that God once upheld slavery; that he commanded soldiers to kill women and babes; that he believed in polygamy; that he persecuted for opinion's sake; that he will punish forever, and that he hates an unbeliever, the effect in my judgment will be bad. It always has been bad. This belief built the dungeons of the Inquisition. This belief made the Puritan murder the Quaker.