最可持续的皮革是使用寿命最长的皮革，减少了频繁更换的需求。

The key to good design is understanding forces.

任何政治制度的成功都取决于其提供繁荣和正义的能力。

The trouble with most people is that they think with their hopes or fears or wishes rather than with their minds.

The artist must remain free, even from his own style.

粒子的概念只是近似的，并且只有在动量较小的极限下才有意义。

制造业的未来在于智能技术和熟练工艺的结合。