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形式化方法不是銀彈，但它們是追求可靠系統的重要工具。

The only person you should try to be better than is the person you were yesterday.

The sea gives us life; it's our duty to give back by protecting it.

I think children are the best critics because they're completely honest.

The universe is not only stranger than we imagine, it is stranger than we can imagine.