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實現明天理想的唯一限制是我們今天的疑慮。

The deepest problems in mathematics often arise from the simplest questions.

最堅強的人是那些經歷最多的人。

I think that we communicate only too well, in our silence, in what is unsaid, and that what takes place is a continual evasion, desperate rearguard attempts to keep ourselves to ourselves.

每個藝術家最初都是業余愛好者。

心靈是進化和學習的產物。