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The past is a mirror, but we often see only what we want to see.
出自《论语·先进篇第十一》。子路问孔子说:“我大胆的请教您,死是怎么回事呢?”孔子回答说:“还不知道生是怎么一回事,怎么能够知道死亡呢?”
Science is not about being right; it's about being less wrong.
The only limit to our realization of tomorrow is our doubts of today.