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