His soul swooned slowly as he heard the snow falling faintly through the universe and faintly falling, like the descent of their last end, upon all the living and the dead.

The more you invest in a bad relationship, the more it costs you.

人分这么几种：不认识，认识，熟人，朋友，知心朋友。朋友不在当面表白，而是背后说起朋友的时候，是否提到过你。

科学的进步不是一条直线，而是一个螺旋，总是在前进，又总是回到起点。