真相很少是純粹的，也從不簡單。
The truth is rarely pure and never simple.
To write is to make the invisible visible.
We don't stop playing because we grow old; we grow old because we stop playing.
市場充滿了噪音，我們試圖過濾掉它。
數(shù)學(xué)的研究是所有智力和精神發(fā)展的不可或缺的基礎(chǔ)。