I've also seen that great men are often lonely. This is understandable, because they have built such high standards for themselves that they often feel alone. But that same loneliness is part of their ability to create.

My father was my teacher. But most importantly he was a great dad.

Why do you think the old stories tell of men who set out on great journeys to impress the gods? Because trying to impress people just isn't worth the time and effort.

You need a little bit of insanity to do great things.

In Genesis, it says that it is not good for a man to be alone but sometimes it is a great relief.

Neither a man nor a crowd nor a nation can be trusted to act humanely or to think sanely under the influence of a great fear.

No great man lives in vain. The history of the world is but the biography of great men.

A good leader is one who can tell another how to reach his or her potential a great leader is one who can help another discover this potential for him or herself.

There is no great genius without some touch of madness.

No employer today is independent of those about him. He cannot succeed alone, no matter how great his ability or capital. Business today is more than ever a question of cooperation.