The mother of creation is vanity.

The history of science is the saga of nature defying common sense.

If you want to be successful, never laugh!

The non-spatial nature of consciousness makes it possible for any apparently unconscious entity to be conscious, and vice versa.

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.

God has created the world to play hide-and-seek with man.

If knowledge is my God, doubt would be my religion.