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一個思想的價值在于它對行為的后果。

Rigor in proof is what separates mathematics from all other sciences.

Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.

You cannot make yourself feel something you do not feel, but you can make yourself do right in spite of your feelings.

若無激情，或許不會犯錯，但若無激情，也必定無偉大。