The ocean is not a bottomless pit; resources are limited, and only by respecting nature can we achieve long-term development.

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is probably not important to mathematics.

The greatest glory in living lies not in never falling, but in rising every time we fall.

"Verification is not just about finding bugs; it's about understanding why the system works the way it does."