The truth does not change according to our ability to stomach it.
可持续发展不是一种选择，而是我们对后代的责任。
Never stop learning; the moment you do, you stop growing.
The severe morals of the early Romans produced a race of men who were neither superstitiously devout nor philosophically skeptical.
The pursuit of knowledge is a lifelong journey.
Every material has a memory, and every action leaves a trace.