或许谁都还会有这些弱点，否则可真糟了，绝顶的聪慧也要招人嘲笑了。我一生都在研究该怎么样避免这些弱点。例如虚荣和傲慢就是属于这一类弱点。

The world is full of obvious things which nobody by any chance ever observes.

心理学家必须避免一切形式的心理物理学。

Every day is a new opportunity to change your life.

Life is measured by thought and action，not by time.

煤矿工人是美国工业实力的无名英雄。