Hope for the best, prepare for the worst.
抱最好的希望，做最坏的打算。

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.)

If you do not learn to think when you are young, you may never learn. ( Edison )
如果你年轻时不学会思考，那就永远不会。（爱迪生）

The greatest of faults is to be conscious of none. -- Thomas Carlyle
最严重的错误莫过于不觉得自己有任何错误。 -- 托马斯·卡莱尔

Even a great life is only a life until you make it.
美好生活,自己创造.