生命的最高表现在于：一个存在物管理自己的行为。总是受他人指导的事物在某种程度上是死物。
The highest manifestation of life consists in this: that a being governs its own actions. A thing which is always subject to the direction of another is somewhat of a dead thing.
和平不是免费的，需要不断努力维护。
道的真谛自有其恒常的规律，人若不能明白，必然会反复仰慕追求。
Sustainability should be at the core of every chemical company's strategy, not just an afterthought.
可持续发展应成为每家化工企业战略的核心，而不是事后才考虑的事。