化学是物质的科学，但我更愿意将其视为变化的科学。
Chemistry is the science of matter, but I prefer to see it as the science of change.
The past is just a story we tell ourselves.
The man who is fit to work at any particular trade is unable to understand the science of that trade without the kindly help and cooperation of men of a totally different type of education.
真理是不朽的，它超越了时间的局限。
