I can, therefore I am.
Quality is not an act, it is a habit.
If you've got a talent, protect it.
Things do not happen. Things are made to happen.
Who seeks shall find.
The secret of getting ahead is getting started.
Never complain and never explain.
Know or listen to those who know.
Always desire to learn something useful.
To know oneself, one should assert oneself.
Even philosophers will praise war as ennobling mankind, forgetting the Greek who said: 'War is bad in that it begets more evil than it kills.'
Science is organized knowledge. Wisdom is organized life.