The great thing in the world is not so much where we stand, as in what direction we are moving.

Silence is one of the great arts of conversation.

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

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

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

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

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

Believe deep down in your heart that you're destined to do great things.

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

To be conscious that you are ignorant of the facts is a great step to knowledge.