Man is always something more than what he knows of himself. He is not what he is simply once and for all, but is a process.

我们今天开采的石料，就是留给后世的遗产。

在一个不断变化的世界中茁壮成长，你必须愿意适应和创新。

【释义】抓住时机不要懈怠，因为机会一旦错过就不会再来。