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I think that in mathematics, and maybe in life, you have to be willing to be a little bit lost.

——《在東京留日三團體歡迎會的演說》（1913年3月1日）

I always cheer up immensely if an attack is particularly wounding because I think, well, if they attack one personally, it means they have not a single political argument left.

倫理不是進步的障礙，而是負責任進步的指南。

The spirit of moderation should also be the spirit of the lawgiver.

未來屬于那些能夠適應變化而不失去核心價值觀的人。

The world is so unhappy because it is ignorant of the true self. Man's real nature is happiness. Happiness is inborn in the true self. Man's search for happiness is an unconscious search for his true self.