The Old Testament filled this world with tyranny and injustice, and the New gives us a future filled with pain for nearly all of the sons of men. The Old Testament describes the hell of the past, and the New the hell of the future.

The object of all education should be to increase the usefulness of man - usefulness to himself and others.

The Christians say, that among the ancient Jews, if you committed a crime you had to kill a sheep. Now they say 'charge it.' 'Put it on the slate.' The Savior will pay it. In this way, rascality is sold on credit, and the credit system in morals, as in business, breeds extravagance.

If the world ever advances beyond what it is today, it must be led by men who express their real opinions.

All religions are inconsistent with mental freedom. Shakespeare is my bible, Burns my hymn-book.

Science built the Academy, superstition the Inquisition.

The rights of men and women should be equal and sacred-marriage should be a perfect partnership.