Count your age by friends, not years. Count your life by smiles, not tears.
Knowing others is intelligence;knowing yourself is true wisdom.Mastering others is strength; mastering yourself is true power.
If everything seems under control, you're not going fast enough.
It is better to remain silent at the risk of being thought a fool, than to talk and remove all doubt of it.
If opportunity doesn't knock, build a door
Nowadays most people die of a sort of creeping common sense, and discover when it is too late that the only things one never regrets are one's mistakes.