The greatest thing in the world is to know how to belong to oneself.

采矿业的可持续性不是一种选择，而是我们未来的必然需求。

There are no objects whose existence is indubitable.

Just as in a good novel， a good program must be full of interesting ideas， and very， very few words.

如果你在家里找东西，最后找到了，用完之后，不要把它放回你最终找到它的地方。把它放回你最先去找的地方。