可持续采石不是选择，而是我们对后代的责任。
Sustainable quarrying isn't an option; it's our obligation to future generations.
The writer’s life is a life of struggle.
Success is not final, failure is not fatal: it is the courage to continue that counts.
我从不试图取悦观众，我只做我认为对的事情。
When the gods wish to punish us, they answer our prayers
追求知识是一生的旅程，而发现的喜悦是其最大的回报。
白云谦卑地站在天边，晨光给它披上壮丽的光彩。
The first step is to establish that something is possible; then probability will occur.
A man's life is limited, but service to the people is infinite.