There is not a piece of science, but its flank may be turned tomorrow.

Though I am weak, yet God, when prayed, Cannot withhold his conquering aid.

My life is not an apology, but a life.

The world leaves no track in space, and the greatest action of man no mark in the vast idea.

The age of puberty is a crisis in the age of man worth studying. It is the passage from the unconscious to the conscious; from thesleep of passions to their rage.

Put God in your debt. Every stroke shall be repaid. The longer the payment is with-held, the better for you; for compound interest on compound interest is the rate and usage of this exchequer.

When nature removes a great man, people explore the horizon for a successor; but none comes, and none will. His class is extinguished with him. In some other and quite different field, the next man will appear.