The human soul is a labyrinth, full of twists and turns, and we are all trying to find our way out.
You are not the opinion of someone who doesn't know you.
In editing, less is often more.
The greatest problem for mathematicians now is probably the Riemann Hypothesis.
历史上最坏的罪恶往往都来自那些自以为是在打击罪恶的人。留心自己打击罪恶的想法。