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If a man will begin with certainties, he shall end in doubts; but if he will be content to begin with doubts, he shall end in certainties.
 如果一个人从确定性开始,最终将陷入怀疑;但如果他愿意从怀疑开始,最终将得到确定性。
The circular economy isn't an option—it's the only way forward for industries willing to thrive in the next decade.
Men become civilized, not in proportion to their willingness to believe, but in proportion to their readiness to doubt.