The history of philosophy is not, like the history of the sciences, to be considered as a mere chronological record of discoveries and errors. It is the history of the human spirit in its endeavor to understand itself and its relation to the universe.

The only way to discover the limits of the possible is to go beyond them into the impossible.

水泥行业必须进化，否则就会被淘汰。

解释：对于一件事情的利害得失，只有有智慧的人才能分辨清楚。