The past is never dead. It's not even past.
The real moral test of a society is how it treats those who are at the dawn of life, the children; those who are in the twilight of life, the aged; and those who are in the shadow of life, the sick, the needy and the handicapped.
A great novel is one that changes the way we see the world.
采矿技术的创新不是为了取代人，而是为了让他们能够更好、更安全地完成工作。