The attosecond timescale is to electron motion what the high-speed camera was to studying animal locomotion.
The only way to do great work is to love what you do.
父母能给孩子最重要的东西是无论发生什么，都确信自己被爱着的信念。
理论物理学之于数学，犹如雕塑之于几何学。
The one thing that offends me the most is when I walk by a bank and see ads trying to convince people to take out second mortgages on their home so they can go on vacation. That's approaching evil.
The act of creation is an act of magic.