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Mathematics is not a spectator sport.
对于那样的人来说,时间是过剩的,是他们看着慢慢流干的桶。但实际上,他认为,它是你手中捧着的一滩发光的泥水;你应该用所有的精力去保护它。
My goal is not to defeat others but to surpass myself.
Fear is the main source of superstition, and one of the main sources of cruelty. To conquer fear is the beginning of wisdom, in the pursuit of truth as in the endeavour after a worthy manner of life.