As all Art depends on Vision, so the different kinds of Art depend on the different ways in which minds look at things.

Science is the systematic classification of experience.

There are many justifications of silence; there can be none of insincerity.

We must never assume that which is incapable of proof.

If you feel yourself to be above the mass, speak so as to raise the mass to the height of your argument.

The object of Literature is to instruct, to animate, or to amuse.

No man ever made a great discovery without the exercise of the imagination.