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

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

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

Unless you choose to do great things with it, it makes no difference how much you are rewarded, or how much power you have.

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

Great dreams of great dreamers are always transcended.

Great minds discuss ideas average minds discuss events small minds discuss people.

Bitter experience has taught us how fundamental our values are and how great the mission they represent.

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

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