What science cannot discover, mankind cannot know.
The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt.
Religions, which condemn the pleasures of sense, drive men to seek the pleasures of power; throughout history power has been the vice of the ascetic.
More important than the curriculum is the question of the methods of teaching and the spirit in which the teaching is given.
Many a man will have the courage to die gallantly, but will not have the courage to say, or even to think, that the cause for which he is asked to die is an unworthy one.
Extreme hopes are born of extreme misery.
You may kill an artist or a thinker, but you cannot acquire his art or his thought.
Written words differ from spoken words in being material structures. A spoken word is a process in the physical world, having an essential time-order; a written word is a series of pieces of matter, having an essential space-order.
Work is of two kinds: first, altering the position of matter at or near the earth’s surface relatively to other such matter; second, telling other people to do so.
With the introduction of agriculture mankind entered upon a long period of meanness, misery, and madness, from which they are only now being freed by the beneficent operation of the machine.
Why is propaganda so much more successful when it stirs up hatred than when it tries to stir up friendly feeling?
Whoever wishes to become a philosopher must learn not to be frightened by absurdities.