12/27/2014

如果你沒辦法解釋給六歲孩童聽,表示你自己根本沒搞懂。 If you can't explain it to a six year old, you don't understand it yourself.

如果你沒辦法解釋給六歲孩童聽,表示你自己根本沒搞懂。
— 亞伯特.愛因斯坦(Albert Einstein),相對論之父
If you can't explain it to a six year old, you don't understand it yourself.

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