If it's worth doing, it's worth doing badly. (on not perfectionism to put things off) .

The modern habit of saying "This is my opinion, but I may be wrong" is entirely irrational. If I say that it may be wrong, I say that is not my opinion. The modern habit of saying "Every man has a different philosophy; this is my philosophy and it suits me" – the habit of saying this is mere weak-mindedness. A cosmic philosophy is not constructed to fit a man; a cosmic philosophy is constructed to fit a cosmos. A man can no more possess a private religion than he can possess a private sun and moon.

'As you have made your bed, so you must lie on it'; which again is simply a lie. If I have made my bed uncomfortable, please God I will make it again.

Just the other day in the Underground I enjoyed the pleasure of offering my seat to three ladies.

Eugenics asserts that all men must be so stupid that they cannot manage their own affairs; and also so clever that they can manage each other's.

The prophet and the quack are alike admired for a generation, and admired for the wrong reasons.

All men are ordinary men; the extraordinary men are those who know it.