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過去總是緊張的，未來是完美的。

"The past is never dead. It's not even past."

The process of mathematical discovery is as important as the discovery itself.

I must confess that I never could see any beauty in her. Her face is too thin; her complexion has no brilliancy; and her features are not at all handsome. Her nose wants character; there is nothing marked in its lines. Her teeth are tolerable, but not out of the common way; and as for her eyes, which have sometimes been called so fine, I could never see anything extraordinary in them.