He who is cruel to animals becomes hard also in his dealings with men. We can judge the heart of a man by his treatment of animals.

Great minds think for themselves.

Freedom is that faculty that enlarges the usefulness of all other faculties.

In every department of physical science there is only so much science, properly so-called, as there is mathematics.

The human heart refuses To believe in a universe Without a purpose.

The yellow Indians do have a meagre talent. The Negroes are far below them, and at the lowest point are a part of the American people.

It is difficult for the isolated individual to work himself out of the immaturity which has become almost natural for him.