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If you’re changing the world, you’re working on important things. You’re excited to get up in the morning.

The world is in a constant state of flux. Nothing remains the same from one moment to the next. You can never step into the same river twice.

Success is built on consistency, not shortcuts.

數學證明的美在于它的簡潔性和必然性。

I don't keep a journal. I keep a life.

Leadership means making tough decisions today that will benefit generations tomorrow.

"The most important thing is to stay true to your values."