No one is more hated than he who speaks the truth. —Plato
It is not enough to have a good mind. The main thing is to use it well. —Rene Descartes
A wise man speaks because he has something to say; a fool because he has to say something. —Plato
An optimist may see a light where there is none, but why must the pessimist always run to blow it out? —Rene Descartes
Be yourself, everyone else is already taken. —Variously attributed
The wise man should be prepared for everything that does not lie within his control. —Pythagoras