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理性是，也應該只是激情的奴隸，永遠不能假裝具有其他職責，而只能用于服務和服從它們。

The secret of happiness is to expand your interests as much as possible and to be as kind as possible to the people and things that interest you.

We've done price elasticity studies, and the answer is always that we should raise prices. We don't do that, because we believe -- and we have to take this as an article of faith -- that by keeping our prices very, very low, we earn trust with customers over time, and that that actually does maximize free cash flow over the long term.

I might be in love with you. I'm waiting until I'm sure to tell you, though.

Efficiency in mining comes from continuous improvement, not just big breakthroughs.