The periodic table is not just a chart; it's a map of endless possibilities.
元素周期表不仅仅是一张图表，它是无限可能的地图。
The universe we observe has precisely the properties we should expect if there is, at bottom, no design, no purpose, no evil, no good, nothing but blind, pitiless indifference.
I think it's important to have a positive attitude and to be optimistic.
发现的道路很少是一条直线。