8.无论是美女的歌声

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)

Experience is not interesting till it begins to repeat itself, in fact, till it does that ,it hardly is experience. (Elizabeth Bowen, British novelist)

All is but lip-wisdom that wants experience. (Philip Sideney, British satesman)

Expreience keeps a dear school, yet fools will learn in no other. (Benjamin Franklin, Americna president)

Experience is the child of thought , and thought is the child of action. We cannot learn men from books. (Benjamin Disraeli, British statesman)

●万事开头难

在科学上没有平坦的大道

●学而不思则惘