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Words are not mere sounds or marks， but signs of facts.

自守形式的研究證明了對稱性在數學中的力量。

The world is not a problem to be solved; it is a living being to which we belong.

The only way to be successful is to work hard and never give up.

When truth is buried， it grows. It chokes. It gathers such an explosive force that on the day it bursts out， it blows up everything with it.?

Success is not final, failure is not fatal: It is the courage to continue that counts.