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我不會因為累而停止，我會因為完成而停止。

如果易用性是唯一的要求，那么每個人都會還在騎三輪車。

The teacher should not teach as if he were pouring knowledge into an empty vessel, but rather as if he were lighting a fire.

"The most ordinary lives can contain extraordinary stories."

Envy is a really stupid sin because it’s the only one you could never possibly have any fun at. There’s a lot of pain and no fun. Why would you want to get on that trolley?