The philosophy of reasoning, to be complete, ought to comprise the theory of bad as well as of good reasoning.

Money is a machine for doing quickly and commodiously what would be done, though less quickly and commodiously, without it.

To do as one would be done by, and to love one's neighbour as oneself, constitute the ideal perfection of utilitarian morality

It is better to be a human being dissatisfied than a pig satisfied; better to be Socrates dissatisfied than a fool satisfied. And if the fool, or the pig, are of a different opinion, it is because they only know their own side of the question.

We have hitherto considered only two possibilities: that the received opinion may be false, and some other opinion, consequently, true; or that, the received opinion being true, a conflict with the opposite error is essential to a clear apprehension and deep feeling of its truth. But there is a commoner case than either of these; when the conflicting doctrines, instead of being one true and the other false, share the truth between them.

The study of science teaches young men to think, while study of the classics teaches them to express thought.

My father taught me that the question Who made me? cannot be answered, since it immediately suggests the further question, Who made God?