difficult circumstances serve as a textbook of life for people.困难坎坷是人们的生活教科书。

failure is the mother of success.-- thomas paine失败乃成功之母。

for man is man and master of his fate.人就是人，是自己命运的主人。

the unexamined life is not worth living.-- socrates混混噩噩的生活不值得过。-- 苏格拉底none is of freedom or of life deserving unless he daily conquers it anew.-- erasmus只有每天再度战胜生活并夺取自由的人，才配享受生活的自由。

our destiny offers not the cup of despair, but the chalice of opportunity. so let us seize it, not in fear, but in gladness. -- r.m. nixon命运给予我们的不是失望之酒，而是机会之杯。因此，让我们毫无畏惧，满心愉悦地把握命运。-- 尼克松

man struggles upwards; water flows downwards.人往高处走，水往低处流。

man errs as long as he strives. --goethe失误是进取的代价。--歌德

the failures and reverses which await men - and one after another sadden the brow of youth - add a dignity to the prospect of human life, which no arcadian success would do. -- henry david thoreau尽管失败和挫折等待着人们，一次次地夺走青春的容颜，但却给人生的前景增添了一份尊严，这是任何顺利的成功都不能做到的。--梭罗a man can fail many times, but he isn\'t a failure until he begins to blame somebody else.--j. burroughs一个人可以失败很多次，但是只要他没有开始责怪旁人，他还不是一个失败者。--巴勒斯

in time of prosperity,friends will be plenty ,in time of adversity,not one amongst twenty.得势时朋友盈门，失势时不见一人,富在深山有远亲，穷在闹市无人问

hope for the best and prepare for the worst抱最好的希望 做最坏的大算

poverty is not a shame, but the being ashamed of it is贫穷非耻辱 耻贫乃耻辱all things in their being are good for something.天生我才必有用。