I'm not sad. I'm not happy. I'm just here.
最重要的事情往往最难说出口。
The present is the past rolled up for action, and the past is the present unrolled for understanding.
The greatest problem for mathematicians now is probably the Riemann Hypothesis.
爱是一种不可抗拒的渴望,渴望被不可抗拒地渴望。