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.

我越是坚决地以自我存在于时代的条件中，我就越清晰地听到过去的语言，越感受到世纪的气息。

「释义」：人要在具体事务中磨炼，才能真正站稳脚跟。