Anguish of mind has driven thousands to suicide; anguish of body, none. This proves that the health of the mind is of far more consequence to our happiness than the health of the body, although both are deserving of much more attention than either of them receive.

History will also afford frequent opportunities of showing the necessity of a public religion, from its usefulness to the public; the advantage of a religious character among private persons; the mischiefs of superstition, and the excellency of the Christian religion above all others, ancient or modern.

...mathematics is distinguished from all other sciences except only ethics, in standing in no need of ethics. Every other science, even logic, especially in its early stages, is in danger of evaporating into airy nothingness, degenerating, as the Germans say, into an arachnoid film, spun from the stuff that dreams are made of. There is no such danger for pure mathematics; for that is precisely what mathematics ought to be.

Prostitution, although hounded, imprisoned, and chained, is nevertheless the greatest triumph of Puritanism.

It is not to be forgotten that what we call rational grounds for our beliefs are often extremely irrational attempts to justify our instincts.

I believe that anyone who wants to stand in a national election should receive a course of psychotherapy. Completing the course should be a qualification for office. This wouldn't change the behaviour of psychopaths, but it might prevent some people who exercise power from imposing their own deep wounds on others.