To know oneself, one should assert oneself.
Never complain and never explain.
Do not weep do not wax indignant. Understand.
It's always too early to quit.
What you do today can improve all your tomorrows.
Always desire to learn something useful.
To be a good loser is to learn how to win.
Be kind whenever possible. It is always possible.
Be gentle to all and stern with yourself.
If you've got a talent, protect it.
The best way to have a good idea is to have a lot of ideas.
Satisfaction of one's curiosity is one of the greatest sources of happiness in life.
Facts are the air of scientists. Without them you can never fly.