You cannot improve your past, but you can improve your future. Once time is wasted, life is wasted.

　　你不能改變你的過(guò)去，但你可以讓你的未來(lái)變得更美好。一旦時(shí)間浪費(fèi)了，生命就浪費(fèi)了。

　　The best preparation for tomorrow is doing your best today.

　　對(duì)明天做好的準(zhǔn)備就是今天做到最好!

　　Never put off what you can do today until tomorrow.

　　今日事今日畢!

　　Jack of all trades and master of none.

　　門(mén)門(mén)精通，樣樣稀松。

　　Behind every successful man there's a lot u unsuccessful years.

　　每個(gè)成功者的后面都有很多不成功的歲月。

　　Genius only means hard-working all one's life.

　　天才只意味著終身不懈地努力。

　　Great works are performed not by strengh, but by perseverance.

　　完成偉大的事業(yè)不在于體力，而在于堅(jiān)韌不拔的毅力。

　　Constant dripping wears away the stone.

　　鍥而不舍，金石可鏤。

　　The first blow is half the battle.

　　良好的開(kāi)端是成功的一半。

　　The good seaman is known in bad weather.

　　驚濤駭浪，方顯英雄本色。

　　Cease to struggle and you cease to live.

　　生命不止，奮斗不息。

　　I feel strongly that I can make it.

　　我堅(jiān)信我一定能成功。

　　Difficult circumstances serve as a textbook of life for people.

　　困難坎坷是人們的生活教科書(shū)。