Dispersion theory is the bridge between the abstract formalism of quantum mechanics and the concrete phenomena we observe.
色散理论是连接量子力学的抽象形式与我们观察到的具体现象之间的桥梁。
Being different is not that difficult. We are all different from different perspectives. But I think being different is good, because you present a different point of view. You may have the chance to make a difference.