As we become civilized we are governed less by persons and more by principles. . . . The best of all leaders is the man who teaches people to lead themselves.

It cannot be too often repeated, that truth scorns the assistance of miracle.

Liberty a word without which all other words are vain.

He who commends the brutalities of the past, sows the seeds of future crimes.

In the search for truth - that everything in nature seems to hide - man needs the assistance of all his faculties. All the senses should be awake.

The myth of hell represents all the meanness, all the revenge, all the selfishness, all the cruelty, all the hatred, all the infamy of which the heart of man is capable.

Labor is the only prayer that Nature answers.