To be a real philosopher all that is necessary is to hate some one else's type of thinking.

Most unhappiness is caused because people listen to themselves... instead of talking to themselves.

Round about the accredited and orderly facts of every science there ever floats a sort of dust-cloud of exceptional observations, of occurrences minute and irregular and seldom met with, which it always proves more easy to ignore than to attend to... Anyone will renovate his science who will steadily look after the irregular phenomena, and when science is renewed, its new formulas often have more of the voice of the exceptions in them than of what were supposed to be the rules.

The union of the mathematician with the poet, fervor with measure, passion with correctness, this surely is the ideal.

We must not just patch and tinker with life. We must keep renewing it. Embrace novelty and uniqueness.

... if we take the universe of 'fitting,' countless coats 'fit' backs, and countless boots 'fit' feet, on which they are not practically fitted; countless stones 'fit' gaps in walls into which no one seeks to fit them actually. In the same way countless opinions 'fit' realities, and countless truths are valid, tho no thinker ever thinks them.

A great many people think they are thinking when they are merely rearranging their prejudices.