If I had my way I'd make health catching instead of disease.

When a fact can be demonstrated, force is unnecessary; when it cannot be demonstrated, force is infamous.

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

There are some truths, however, that we should never forget: Superstition has always been the relentless enemy of science; faith has been a hater of demonstration; hypocrisy has been sincere only in its dread of truth, and all religions are inconsistent with mental freedom.

The church hates a thinker precisely for the same reason a robber dislikes a sheriff, or a thief despises the prosecuting witness.

Anger is a wind which blows out the lamp of the mind.

Ignorance is the worst form of slavery. (Paraphrased)