The meaning of life is 'the ultimate questioner's vanity.'
The worst of all superstitions may be that astrology is a superstition.
The best thing about the world is that it has a mysterious structure and the worst thing is that it has a grievous structure.
The real doubt is the doubt that doubts that it doubts.
In reality the universe has no geometry.
How miserable a solipsist is! It is rather senseless for him to even assert his belief in solipsism, for, on the one hand, if his belief is false it is like committing intellectual suicide, and, on the other hand, if his belief is true it is an act of intellectual insanity.