My success was not based so much on any great intelligence but on great common sense.

Nothing great in the world has ever been accomplished without passion.

All great and beautiful work has come of first gazing without shrinking into the darkness.

Some are born great, some achieve greatness, and some have greatness thrust upon them.

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

To walk around with an ego is a bad thing. To have confidence in yourself is a great thing.

Silence is one of the great arts of conversation.

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

To accomplish great things, we must not only act, but also dream not only plan, but also believe.

Great things are not accomplished by those who yield to trends and fads and popular opinion.