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Every man has a right to his opinion, but no man has a right to be wrong in his facts.

我們對明天認識的唯一限制是我們今天的懷疑。

每一次技術突破，都是對極限的挑戰。

Buying tools: Start by buying the absolute cheapest tools you can find. Upgrade the ones you use a lot. If you wind up using some tool for a job， buy the very best you can afford.

愛不是占有，而是欣賞。