It is no small art to sleep: for that purpose you must keep awake all day.
An optimist believes we live in the best possible of worlds.- A pessimist fears that this is true.
Man once surrendering his reason, has no remaining guard against absurdities the most monstrous, and like a ship without rudder, is the sport of every wind.
If one devalues rationality, the world tends to fall apart.
Freedom is the right to tell people what they do not want to hear.
The deepest sin against the human mind is to believe things without evidence.
I don’t believe in taking right decisions. Take decisions and make them right.
Education is the most powerful weapon which you can use to change the world.
Maybe true travel is not the transportation of the body, but a change of perception, renewing the mind.
Education is the kindling of a flame, not the filling of a vessel.