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The course of history is shaped by the will of individuals.

Every life is in many days, day after day. We walk through ourselves, meeting robbers, ghosts, giants, old men, young men, wives, widows, brothers-in-love, but always meeting ourselves.

Three passions， simple but overwhelmingly strong， have governed my life: the longing for love， the search for knowledge， and unbearable pity for the suffering of mankind.

Mathematics is the music of reason.

"The past is a foreign country; they do things differently there."

The greatest wisdom is to recognize one's own ignorance.

肉腐了就會生蛆，魚枯死了就會生蟲，懈怠疏忽忘記了做人準則就會招來災禍。