Laughter is one of the very privileges of reason, being confined to the human species.

Show me the person you honor, for I know better by that the kind of person you are. For you show me what your idea of humanity is.

Youth is to all the glad season of life; but often only by what it hopes, not by what it attains, or what it escapes.

A person with half volition goes backwards and forwards, but makes no progress on even the smoothest of roads.

I don't pretend to understand the Universe - it's a great deal bigger than I am.

If an eloquent speaker speak not the truth, is there a more horrid kind of object in creation?

The essence of humor is sensibility; warm, tender fellow-feeling with all forms of existence.