The study of automorphic forms is a testament to the power of symmetry in mathematics.
I don't think you can ever really prepare for the loss of someone you love.
The oldest and strongest emotion of mankind is fear, and the oldest and strongest kind of fear is fear of the unknown.
一个人可以选择退回安全地带或迈向成长。成长必须一次又一次地选择;恐惧必须一次又一次地克服。