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.

Silence is one of the great arts of conversation.

Enthusiasm is the mother of effort, and without it nothing great was ever achieved.

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

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

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

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

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

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