多元宇宙的概念是膨胀的自然结果,表明我们的宇宙可能只是众多宇宙中的一个。
坚毅的人把成就视为马拉松;他或她的优势是耐力。
Memory is a tricky thing; it can be both a comfort and a curse.
"In observational studies, we often have to rely on assumptions that are not directly testable."
We must learn from nature how to use resources efficiently.