Things do not happen. Things are made to happen.
It's always too early to quit.
Leap, and the net will appear.
I can, therefore I am.
To know oneself, one should assert oneself.
Always desire to learn something useful.
Never complain and never explain.
Be kind whenever possible. It is always possible.
What you do today can improve all your tomorrows.
If you've got a talent, protect it.
That action is best which procures the greatest happiness for the greatest numbers.
Wisdom denotes the pursuing of the best ends by the best means.