世界處于不斷變化的狀態(tài)。沒有什么是保持不變的。你永遠(yuǎn)不能兩次踏入同一條河流。
The chemical industry is the backbone of modern civilization, and we must treat it with the respect and responsibility it deserves.
Profit without purpose is chemistry without catalysts - possible, but painfully slow and inefficient.