Read no history: nothing but biography, for that is life without theory.

Scientific, like spiritual truth, has ever from the beginning been descending from heaven to man.

We should never lose an occasion. Opportunity is more powerful even than conquerors and prophets.

I feel a very unusual sensation - if it is not indigestion, I think it must be gratitude.

Terror has its inspiration, as well as competition.

A beautiful hand is an excellent thing in woman; it is a charm that never palls; and better than all, it is a means of fascinating that never disappears.

Friendship is the gift of the gods, and the most precious boon to man.