世界是一面镜子,反映出我们最深的恐惧和欲望。
史记
A teacher must have a healthy body, the skills of a farmer, the mind of a scientist, the interest in art, and the spirit of social reform.
Mathematics is the science of patterns, and nature exploits every possible pattern.
The ocean is not a bottomless pit; resources are limited, and only by respecting nature can we achieve long-term development.