rule
I have only two rules which I regard as principles of conduct. The first is: Hav — Albert Einstein
Five rules are of absolute necessity, and cannot be dispensed with without essen — Blaise Pascal
Rules necessary for definitions . Not to leave any terms at all obscure or ambig — Blaise Pascal
Rules necessary for axioms . Not to demand in axioms any but things perfectly ev — Blaise Pascal
Any fool can make a rule And every fool will mind it. — Henry David Thoreau
Use these rules then, and trouble thyself about nothing else. — Marcus Aurelius
Really, if the lower orders don't set us a good example, what on earth is the us — Oscar Wilde
Je ne vois qu'une règle: être clair. Si je ne suis pas clair, tout mon monde est — Stendhal
凡用兵之法，全國爲上；破國次之；全軍爲上，破軍次之；全旅爲上，破旅次之；全卒爲上，破卒次之；全伍爲上，破伍次之。 — Sun Tzu
Measure for Measure — William Shakespeare