Problems frequently get easier if you turn them around in reverse. In other words, if you want to help India, the question you should ask is not “how can I help India,” it’s “what is doing the worst damage in India? What will automatically do the worst damage and how do I avoid it?”
化学是一门研究物质性质及其变化的科学。
——2003年10月13日在联合国国际电信联盟(ITU)大会上发言