Wise men learn by other men's mistakes; fools by their own.
The good seaman is known in bad weather.
The important thing in life is to have a great aim, and the determination to attain it.
The secret of success is constancy of purpose.The shortest answer is doing.
The voice of one man is the voice of no one.
To an optimist every change is a change for the better.
To read without reflecting is like eating without digesting.
Towering genius disdains a beaten path. It seeks regions hitherto unexplored.
True mastery of any skill takes a lifetime.
Understand yourself in order to better understanding others.
Genius only means hard-working all one's life.
The man who has made up his mind to win will never say "impossible ".
There is no such thing as a great talent without great will - power.