If you doubt yourself, then indeed you stand on shaky11 ground

　　Do not , for onerepulse , 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.)

　　Don't part with yourillusions . When they are gone you may still exist , but you have ceased tolive. (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)

　　I want to bring outthe secrets of nature and apply them for the happiness of man . I don't know ofany better service to offer for the short time we are in the world .(ThomasEdison , 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.)

　　Ideal is the beacon.Without ideal , there is no secure direction ; without direction , there is nolife .( Leo Tolstoy , Russian writer)

　　理想是指路明灯。没有理想，就没有坚定的方向;没有方向，就没有生活。(俄国作家 托尔斯泰. L .)

　　If winter comes , canspring be far behind ?( P. B. Shelley , British poet )

　　冬天来了，春天还会远吗?( 英国诗人, 雪莱. P. B.)

　　If you doubt yourself, then indeed you stand on shaky11 ground .(Ibsen , Norwegiandramatist )

　　如果你怀疑自己，那么你的立足点确实不稳固了。 (挪威剧作家 易卜生)

　　If you would go uphigh , then use your own legs ! Do not let yourselves carried aloft; do notseat yourselves on other people's backs and heads . (F. W . Nietzsche , German Philosopher)

　　如果你想走到高处，就要使用自己的两条腿!不要让别人把你抬到高处;不要坐在别人的背上和头上。(德国哲学家 尼采. F. W.)

　　It is at our mother'sknee that we acquire our noblest and truest and highest , but there is seldomany money in them.( Mark Twain , American writer )

　　就是在我们母亲的膝上，我们获得了我们的最高尚、最真诚和最远大的理想，但是里面很少有任何金钱。(美国作家 马克·吐温)