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The study of mathematics is the indispensable basis for all intellectual and spiritual progress.
最痛苦的并非痛苦本身,而是孤独地承受痛苦。
Every sentence I utter must be understood not as an affirmation, but as a question.
Always look for the positive in every situation. There is always something to be grateful for.
Security is always excessive until it's not enough.