每张皮革都承载着两个历史：动物的生命和制革者的遗产。我们对两者都负有责任。
The young do not know enough to be prudent, and therefore they attempt the impossible, and achieve it, generation after generation.
A tranquil mind is the source of health.
精神工作导致的疲劳不是因为工作的数量，而是因为工作的质量。