Just to the extent that the Bible was appealed to in matters of science, science was retarded; and just to the extent that science has been appealed to in matters of religion, religion has advanced - so that now the object of intelligent religionists is to adopt a creed that will bear the test and criticism of science.

All religion is slavery.

Every pulpit is a pillory, in which stands a hired culprit, defending the justice of his own imprisonment.

The intellectual advancement of man depends on how often he can exchange an old superstition for a new truth.

It is a blessed thing that in every age some one has had the individuality enough and courage enough to stand by his own convictions.

Do the best that can be done and then . . . be resigned.

Spirituality for the most part is a mask worn by idleness, arrogance and greed.