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2004年9月13日，81歲的楊振寧在清華大學開始為本科生講授普通物理。他說

"Exile is not a place, it's a state of mind you carry with you."

I don't want to be someone else. I want to be the best version of myself.

Be yourself and you can be anything.

Trust is like a mirror, you can fix it if it's broken, but you can still see the crack in that motherfucker's reflection.

云不是終點，而是持續創新的旅程。