The strong man is strongest when alone.
人类最古老而强烈的情绪,便是恐惧;而最古老最强烈的恐惧,便是对未知的恐惧。
除非有勇气远离海岸,否则你永远游不到新的地平线。
In mathematics, the art of proposing a question must be held of higher value than solving it.