1、Do not , for one repulse , give up the purpose that you resolved to effect .(William Shakespeare , British dramatist)

　　不要只因一次失败，就放弃你原来决心想达到的目的。(英国剧作家 莎士比亚.W.)

　　2、Don't part with your illusions . When they are gone you may still exist , but you have ceased to live. (Mark Twain , American writer)

　　不要放弃你的幻想。当幻想没有了以后，你还可以生存，但是你虽生犹死。((美国作家 马克·吐温)

　　3、I want to bring out the secrets of nature and apply them for the happiness of man . I don't know of any better service to offer for the short time we are in the world .(Thomas Edison , American inventor)

　　我想揭示大自然的秘密，用来造福人类。我认为，在我们的短暂一生中，最好的贡献莫过于此了。 (美国发明家 爱迪生. T.)