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倉庫里沒有儲備的谷物，不可以應付兇饑之年；兵庫不準備兵器，沒有足夠的實力，即使站在正義的一方也無法征討無義之人，實力是維護正義的強有力的保障；城郭防守不完全，則不能守護自己；沒有居安思危的心理，不可應付突發(fā)事件。

When I look at the world I'm pessimistic, but when I look at people I am optimistic.

創(chuàng)造就是活兩次。

The combination problem is the most difficult aspect of panpsychism.

The complexity of software is an essential property, not an accidental one.

We don't inherit the oceans from our ancestors; we borrow them from our children.

定義就是限制。