I don't have to be perfect, I just have to be me.
数学的艺术在于发现包含所有普遍性萌芽的特殊案例。
Being brave isn’t the absence of fear. Being brave is having that fear but finding a way through it.
勇敢不是没有恐惧。勇敢是虽有恐惧,但能找到克服它的方法。