Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
The beauty of physics lies in its ability to reveal the profound simplicity underlying the apparent complexity of the universe.
未来的零售，一定是线上线下融合。
Positive emotions are not trivial luxuries, but instead may be critical necessities for optimal functioning.