(noun) A regulation, law, guideline. Example: "All participants must adhere to the rules."
"Know the rules well, so you can break them effectively."
"Hatred does not cease by hatred, but only by love; this is the eternal rule."
"The great rule of conduct for us, in regard to foreign nations, is, in extending our commercial relations, to have with them as little political connection as possible."
"You have to learn the rules of the game. And then you have to play better than anyone else."
"Make it a rule never to give a child a book you would not read yourself."
"In individuals, insanity is rare; but in groups, parties, nations and epochs, it is the rule."
"It is substantially true, that virtue or morality is a necessary spring of popular government. The rule, indeed, extends with more or less force to every species of free government."
"The day the power of love overrules the love of power, the world will know peace."
"The first rule is to keep an untroubled spirit. The second is to look things in the face and know them for what they are."
"The golden rule is that there are no golden rules."
"Those are my principles, and if you don't like them, well I have others."
"One thing you should know about me is I never play to lose. Always aim high and rarely obey the rules."