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 most dangerous phrase in business is "We've always done it this way."

The study of topological phases of matter is a testament to the power of theoretical physics to predict and explain new states of matter.

解析：反对将心与理、物分开。

邪恶胜利的唯一必要条件是好人无所作为。