A little learning is not a dangerous thing to one who does not mistake it for a great deal. – William Allen White

If a man would move the world, he must first move himself. – Socrates

It is a mistake to imagine that potentially great men are rare. It is the conditions that permit the promise of greatness to be fulfilled that are rare. What is so difficult to achieve is the cultural background that permits potential greatness to be converted into actual greatness. – Fred Hoyle, Of Man and Galaxies