Can I jump over two or three guys like I used to? No. Am I as fast as I used to be? No, but I still have the fundamentals and smarts. That’s what enables me to still be a dominant player. As a kid growing up, I never skipped steps. I always worked on fundamentals because I know athleticism is fleeting.

量子力学的本质不在于描述粒子的行为，而在于描述我们对粒子认知的行为。