RESPIRATOR, n. An apparatus fitted over the nose and mouth of an inhabitant of London, whereby to filter the visible universe in its passage to the lungs.

Cat: a soft indestructible automaton provided by nature to be kicked when things go wrong in the domestic circle.

PROOF, n. Evidence having a shade more of plausibility than of unlikelihood. The testimony of two credible witnesses as opposed to that of only one.

USAGE, n. The First Person of the literary Trinity, the Second and Third being Custom and Conventionality. Imbued with a decent reverence for this Holy Triad an industrious writer may hope to produce books that will live as long as the fashion.

A large stone presented by the archangel Gabriel to the patriarch Abraham, and preserved at Mecca. The patriarch had perhaps asked the archangel for bread.

Liberty: One of Imagination's most precious possessions.

An ingenious compound of desirability and appearance. Discovery of truth is the sole purpose of philosophy, which is the most ancient occupation of the human mind and has a fair prospect of existing with increasing activity to the end of time.