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If knowledge can create problems, it is not through ignorance that we can solve them.

Every object has potential; it's our job to unlock it.

The past is a shadow that follows you into the future.

Never stop learning—the moment you think you know everything is the moment you fall behind.

"Reality is a cliché from which we escape by metaphor."

真相很少是純粹的，也從來不簡單。

Education is the art of making man ethical.

The history of science is the history of men correcting their mistakes.

出自北齊·顏之推《顏氏家訓·勉學》。不得，不能、不可。雌黃，礦物名，可作顏料，古代用以涂改文字，后引申為信口更改、隨便亂說。沒有讀夠一定數量的書，對前人的見解沒有徹底了解，是不能隨便亂下結論、亂發議論的。書要多讀、話要謹慎；應當謙虛向學，不可妄自尊大。