Immortality: A toy which people cry for, And on their knees apply for, Dispute, contend and lie for, And if allowed Would be right proud Eternally to die for.

Evolutionary biology is genuinely scientific, but more than that it opens the door to a world more marvellous than any Christian fundamentalist has ever read into the pages of the Bible.

Platitude: All that is mortal of a departed truth.

Work: a dangerous disorder affecting high public functionaries who want to go fishing.

PERIPATETIC, adj. Walking about. Relating to the philosophy of Aristotle, who, while expounding it, moved from place to place in order to avoid his pupil's objections. A needless precaution - they knew no more of the matter than he.

CERBERUS, n. The watch-dog of Hades, whose duty it was to guard the entrance - against whom or what does not clearly appear; everybody, sooner or later, had to go there, and nobody wanted to carry off the entrance.

Truth - An ingenious compound of desirability and appearance.