Do not, for one repulse, give up the purpose that you resolved to effect. (William Shakespeare, British dramatist)
不要只因一次失敗，就放棄你原來決心想達(dá)到的目的。(英國劇作家 莎士比亞.W.)

Don’t part with your illusions. When they are gone you may still exist, but you have ceased to live. (Mark Twain, American writer)
不要放棄你的幻想。當(dāng)幻想沒有了以后，你還可以生存，但是你雖生猶死。（(美國作家 馬克?吐溫)

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，用來造福人類。我認(rèn)為，在我們的短暫一生中，最好的貢獻(xiàn)莫過于此了。 (美國發(fā)明家 愛迪生. T.)

Ideal is the beacon. Without ideal, there is no secure direction; without direction, there is no life.( Leo Tolstoy, Russian writer)
理想是指路明燈。沒有理想，就沒有堅定的方向；沒有方向，就沒有生活。(俄國作家 托爾斯泰. L.)

If winter comes, can spring be far behind ?( P. B. Shelley, British poet )
冬天來了，春天還會遠(yuǎn)嗎？( 英國詩人, 雪萊. P. B.)

If you doubt yourself, then indeed you stand on shaky ground. (Ibsen, Norwegian dramatist 如果你懷疑自己，那么你的立足點(diǎn)確實(shí)不穩(wěn)固了。 (挪威劇作家 易卜生)

If you would go up high, then use your own legs ! Do not let yourselves carried aloft; do not seat yourselves on other people’s backs and heads. (F. W. Nietzsche, German Philosopher)
如果你想走到高處，就要使用自己的兩條腿！不要讓別人把你抬到高處；不要坐在別人的背上和頭上。(德國哲學(xué)家 尼采. F. W.)

It is at our mother’s knee that we acquire our noblest and truest and highest, but there is seldom any money in them. ( Mark Twain, American writer )
就是在我們母親的膝上，我們獲得了我們的最高尚、最真誠和最遠(yuǎn)大的理想，但是里面很少有任何金錢。(美國作家 馬克?吐溫)

Living without an aim is like sailing without a compass. (Alexander Dumas, Davy de La Pailleterie, French Writer)
生活沒有目標(biāo)就像航海沒有指南針。 (法國作家 大仲馬. A.)

The ideals which have lighted my way, and time after time have given me new courage to face life cheerfully 19 have been kindness, beauty and truth.(Albert Einstein, American scientist)
有些理想曾為我們引過道路，并不斷給我新的勇氣以欣然面對人生，那些理想就是–真、善、美。 (美國科學(xué)家 愛因斯坦. A.)

The important thing in life is to have a great aim, and the determination to attain it. (Johan Wolfgang von Goethe, German Poet and dramatist)
人生重要的事情就是確定一個偉大的目標(biāo)，并決心實(shí)現(xiàn)它。(德國詩人、戲劇家 歌德. J. M.)

The man with a new idea is a crank until the idea succeeds. (Mark Twain, American writer)
具有新想法的人在其想法實(shí)現(xiàn)之前是個怪人。 (美國作家 馬克?吐溫)

The only limit to our realization of tomorrow will be our doubts of today. (Franklin Roosevelt, American president)
實(shí)現(xiàn)明天理想的唯一障礙是今天的疑慮。(美國總統(tǒng) 羅斯福. F.)

When an end is lawful and obligatory, the indispensable means to is are also lawful and obligatory. (Abraham Lincoln, American statesman)
如果一個目的是正當(dāng)而必須做的，則達(dá)到這個目的的必要手段也是正當(dāng)而必須采取的。(美國政治家 林肯. A.)