We must always question our assumptions and be willing to revise our understanding in light of new evidence.

"The goal of mathematics is to understand the universe."

The writer must be a traitor to his class, his country, his religion—to everything except his conscience.

不管到了哪里，我都一直留恋那令人愉快的悠闲生活，对唾手可得的富贵荣华毫无兴趣，甚至厌恶。