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The scientist is a lover of truth for the very love of truth itself, wherever it may lead.

You are never too old to set another goal or to dream a new dream.

"The key to innovation is diversity of thought."

"Time is not a line but a dimension, like the dimensions of space."

Science is a wonderful thing if one does not have to earn one's living at it.

比被人談論更糟糕的是不被談論。