The challenge of unifying all forces of nature is one that has driven theoretical physics for over a century.
统一自然界所有力的挑战是一个多世纪以来推动理论物理学发展的动力。
The doorway to happiness opens from the inside.
The way we perceive the world is heavily influenced by our past experiences and current expectations.
The best investments are often the ones that are the most boring.
天地没有偏爱，对待万物像对待草扎的狗一样；圣人也没有偏爱，对待百姓也像对待草扎的狗一样。
