If you can't fly then run, if you can't run then walk, if you can't walk then crawl, but whatever you do you have to keep moving forward. -Martin Luther King 如果你不能飞，那就奔跑，如果不能奔跑，那就行走，如果不能行走，那就爬行， 但无论你做什麽，都要保持前进的方向。 -马丁路德 -- Theory is when one knows everything but nothing works. Practice is when everything works but nobody knows why. In our lab, theory and practice are combined: nothing works and nobody knows why. --

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