Experience without learning is better than learning without excperi-ence. (Bertuand Russell, British philosopher and mathematician)
有经验而无学问胜于有学问而无经验。(英国哲学家、数学家 罗素.B.)

I have but one lamp wait which my feet are guided; and that is the lamp of experience. I know of no way of judging of the future but by the past. (Patrick Henry, Americna statesman)
我只拿一盏灯来指引我的脚步，而那盏灯就是经验，对于未来，我只是能以过去来判断。(美国政治家 享利.P.)

Mistakes are an essential part of education. (Bertrand Russell, Bdritish philosopher)
从错误中吸取教训是教育极为重要的一部分。(英国哲学家 罗素 . B .)

Neither beliver nor reject anything, because any other person has rejected of believed it. Heaven has given you a mind for judging truth and error, Use it. (Thomas Jefferson, American president)
不要因为别的人相信或否定了什么东西，你也就去相信它或否定它。上帝赠予你一个用来判断真理和谬误的头脑。那你就去运用它吧/ (美国总统 杰斐逊 .T.)

One thorn of experience is worth a whole wilderness of warning. (James Russell Lowell, British Poet and critic)
一次痛苦的经验抵得上千百次的告诫。(英国诗人、批评家 洛威尔 .J. R .)