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

The greatest discovery of all time is that a person can change his future by merely changing his attitude.

Little minds are tamed and subdued by misfortune but great minds rise above them.

Many great actions are committed in small struggles.

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

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

After climbing a great hill, one only finds that there are many more hills to climb.

Silence is one of the great arts of conversation.

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

All difficult things have their origin in that which is easy, and great things in that which is small.