Mozart began his works in childhood and a childlike quality lurked in his compositions until it dawned on him that the Requiem he was writing for s a stranger was his own.

The laws of biology are the fundamental lessons of history.

The influence of geographic factors diminishes as technology grows. The character and contour of a terrain may offer opportunities for agriculture, mining, or trade, but only the imagination and initiative of leaders, and the hardy industry of followers, can transform the possibilities into fact...Man, not the earth, makes civilization.

Today's rebel is tomorrow's tyrant.

A great civilization is not conquered from without until it has destroyed itself from within.

If you have character, endeavor, personality, courage and the capacity for concentrated labor, you will do what is your destiny – and, perhaps, even do it well.

It is good a philosopher should remind himself, now and then, that he is a particle pontificating on infinity.