When considering marriage one should ask oneself this question; 'will I be able to talk with this person into old age?' Everything else is transitory, the most time is spent in conversation.

Logic must no more admit a unicorn than zoology can.

Aristotle's metaphysics, roughly speaking, may be described as Plato diluted by common sense. He is difficult because Plato and common sense do not mix easily.

War can only be abolished by the establishment of a world government.

The purpose of education is to teach a defense against eloquence.

Ideas and principles that do harm are as a rule, though not always, cloaks for evil passions.

Politics is largely governed by sententious platitudes which are devoid of truth