My success wasn't so much due to intelligence, but the fact that I stuck with problems longer.
The human spirit must prevail over technology.
Smoke like a chimney, work like a horse, eat without thinking, go for a walk only in really pleasant company.
You might as well not be alive if you're not in awe of God.
A problem defined, is a problem half solved.
The physicist's greatest tool is his wastebasket.