The discovery of what is true and the practice of that which... - Voltaire
"The discovery of what is true and the practice of that which is good are the two most important aims of philosophy."
More quotes by Voltaire
"If we do not find anything very pleasant, at least we shall find something new."
"The perfect is the enemy of the good."
"It is clear that the individual who persecutes a man, his brother, because he is not of the same opinion, is a monster."
"The secret of being a bore is to tell everything."
"Judge a man by his questions rather than by his answers."