Young men know the rules, but old men know the exceptions.
Oliver Wendell Holmes (1809-1894) American author and poet.
It is a good idea to obey all the rules when you're young just so you'll have the strength to break them when you're old.
Mark Twain (1835-1910) U.S. humorist, writer, and lecturer.
Any fool can make a rule, and every fool will mind it.
Henry David Thoreau (1817-1862) American naturalist, poet and philosopher.
Hell, there are no rules here, we are trying to accomplish something.
Thomas Alva Edison (1847-1931) American inventor.
Think in the morning. Act in the noon. Eat in the evening. Sleep in the night.
William Blake (1757-1827) British poet and painter.
There is no more important rule of conduct in the world than this: attach yourself as much as you can to people who are abler than you and yet not so very different that you cannot understand them.
Georg C. Lichtenberg (1742-1799) German scientist, satirist and anglophile.
When ancient opinions and rules of life are taken away, the loss cannot possibly be estimated. From that moment, we have no compass to govern us, nor can we know distinctly to what port to steer.
Edmund Burke (1729-1797) British political writer.
There are two great rules of life; the one general and the other particular. The first is that everyone can, in the end, get what he wants, if he only tries. That is the general rule. The particular rule is that every individual is, more or less, an exception to the rule.
Samuel Butler (1612-1680) British poet and satirist.
Be studious in your profession, and you will be learned. Be industrious and frugal, and you will be rich. Be sober and temperate, and you will be healthy. Be in general virtuous, and you will be happy. At least you will, by such conduct, stand the best chance for such consequences.
Benjamin Franklin (1706-1790) American statesman, scientist and philosopher.
The golden rule is that there are no golden rules.
George Bernard Shaw (1856-1950) Irish writer.