The individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

过去是一面映照当下的镜子。

"The only way to learn mathematics is to do mathematics."

过去从未死去，它甚至还未过去。

Strength comes from overcoming the things you thought you couldn't handle.