The greatest wisdom is to recognize one's own ignorance.

Philosophy is the eternal pursuit of wisdom.

The world is a machine, and we are its broken parts.

The most sustainable leather is the one that lasts the longest, reducing the need for frequent replacements.

A public-opinion poll is no substitute for thought.

我四十而立之时，总觉得，当回顾我的一生，我会看到一系列的决定，一些是我仔细思考后作出的，一些是我无意而为的，还有很多是我根本无法掌控的。

译文：聪明人注重细节，有智慧的人能发现苗头。