The main thing is to keep the main thing the main thing.
最重要的是保持最重要的事情最重要。
我不知道市场会怎样。我只是尽量买便宜的东西。
每一个挑战都是学习和改进的机会。
The bigger the company, the smaller we should think.
化学工业是现代文明的支柱,我们必须以应有的尊重和责任对待它。
The sun is our most powerful tool in Africa. We must learn to work with it, not against it.