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The laser is to attosecond physics what the telescope was to astronomy.

我們不能選擇自己的心。我們不能讓自己想要對我們或對別人有益的東西。

The more you write, the more you discover what you don’t know.

The price of freedom is the willingness to do sudden battle, anywhere, at any time, and with utter recklessness.

Dream big, start small.

幸福的秘密是自由，自由的秘密是勇氣。