Quality is free. It's not a gift, but it's free. What costs money are the unquality things -- all the actions that involve not doing jobs right the first time.

The process of solving a mathematical problem is often more important than the solution itself.

The role of science is to illuminate the path forward, not dictate it.

【译文】 孔子说：“三军可以剥夺主帅，匹夫不可剥夺志向。”

There is, I believe, in every disposition a tendency to some particular evil, a natural defect, which not even the best education can overcome.

The only way to achieve sustainable development is through continuous technological advancement and environmental responsibility.

世人常因冀望遥远难及的幸福，忽略了眼前的小乐趣。