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You must be the change you wish to see in the world.

I always thought I wanted to play professionally, and I always knew that to do that I'd have to make a lot of sacrifices.

有時(shí)候，最英勇的行為就是繼續(xù)活下去。

You have to be able to center yourself at all times. That's what makes a champion.

自然和歷史是地理知識(shí)的兩個(gè)重要來源。

科學(xué)是基礎(chǔ)，但同情心是我們行業(yè)的靈魂。

永遠(yuǎn)不要為了速度而犧牲質(zhì)量。