盈利和可持续性必须齐头并进，否则两者都无法持久。

The most important thing in mathematics is to have a good intuition.

时间不是一条线，而是一个维度，就像空间的维度一样。

【译文】人世间的好话全让书本给说尽了，天下的名山大半被寺庙所占据了。上山不怕伤害人的老虎，就怕人际关系中那些两面三刀的阴险小人。

The function of entrepreneurs is to reform or revolutionize the pattern of production by exploiting an invention or, more generally, an untried technological possibility for producing a new commodity or producing an old one in a new way.