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The pursuit of science is not a luxury but a necessity for the survival of mankind.

數學的本質在于它的自由。

The human being cannot live in a condition of emptiness for very long: if he is not growing toward something, he does not merely stagnate; the pent-up potentialities turn into morbidity and despair, and eventually into destructive activities.

Globalization is not a multiple-choice question, but a required question.