化学工业是现代文明的支柱,我们必须以应有的责任感对待它。
The chemical industry is the backbone of modern civilization, and we must treat it with the responsibility it deserves.
最古老、最简短的词语——'是'和'否'——是需要最多思考的。
Be scrupulously truthful, even when truth is inconvenient, for it is more inconvenient when you try to conceal it.