Most people say that it is the intellect which makes a great scientist. They are wrong: it is character.

Most great people have attained their greatest success just one step beyond their greatest failure.

A great part of courage is the courage of having done the thing before.

There is no pain so great as the memory of joy in present grief.

I believe in the fundamental truth of all great religions of the world.

All the great things are simple, and many can be expressed in a single word: freedom, justice, honor, duty, mercy, hope.

A great pleasure in life is doing what people say you cannot do.

Only those who dare to fail greatly can ever achieve greatly.

Our greatest glory is not in never failing, but in rising up every time we fail.

Silence is one of the great arts of conversation.