Commerce is the great civilizer.

I would not for my life destroy one star of human hope, but I want it so that when a poor woman rocks the cradle and sings a lullaby to the dimpled darling, she will not be compelled to believe that ninety-nine chances in a hundred she is raising kindling wood for hell.

A good deed is the best prayer.

Secularism is a religion, a religion that is understood. It has no mysteries, no mumblings, no priests, no ceremonies, no falsehoods, no miracles, and no persecutions.

Give me the storm and tempest of thought and action, rather than the dead calm of ignorance and faith! Banish me from Eden when you will; but first let me eat of the fruit of the tree of knowledge!

There is no slavery but ignorance.

The man who invented the telescope found out more about heaven than the closed eyes of prayer ever discovered.