The mind is a strange machine which can combine the materials offered to it in the most astonishing ways.

I think we ought always to entertain our opinions with some measure of doubt.

The fundamental defect of fathers is that they want their children to be a credit to them.

It is because modern education is so seldom inspired by a great hope that it so seldom achieves great results.

Man, needs, for his happiness, not only the enjoyment of this or that, but hope and enterprise and change.

It is clear that thought is not free if the profession of certain opinions makes it impossible to earn a living.

Drunkenness is temporary suicide.

It may seem to your conceited to suppose that you can do anything important toward improving the lot of mankind.

Nothing of importance is ever achieved without discipline.

Fear is, I believe, a most effective tool in destroying the soul of an individual--and the soul of a people.