Think of the egotism of a man who believes that an infinite being wants his praise!

Darwin has done more to change human thought than all the priests who have existed.

Custom meets us at the cradle and leaves us only at the tomb.

Only those who live on the labor of the ignorant are the enemies of science. Real love and real religion are in no danger from science. The more we know the safer all good things are.

All I have to say is, Love one another - that is the height of all philosophy. It is beyond all religions. It is the secret of joy - the fountain of Perpetual Youth - the only rainbow on life's dark cloud.

Millions of men give all their energies, as well as their very souls, for the acquisition of gold. And this will continue as long as society is ignorant enough and hypocritical enough to hold in high esteem the man of wealth without the slightest regard to the character of the man.

Intellect, without heart, is infinitely cruel. . . . So that, after all, the real aristocracy must be that of goodness where the intellect is directed by the heart.