The essence of quantum mechanics is that it provides a mathematical framework for the description of the behavior of atomic and subatomic particles.
量子力学的本质在于它提供了一个数学框架，用于描述原子和亚原子粒子的行为。
"Books are the ultimate Dumpees: put them down and they’ll wait for you forever; pay attention to them and they always love you back."
我们都是自己的监狱，也是自己的狱卒。