数学的本质不是使简单的事物复杂化，而是使复杂的事物简单化。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
【释义】君子的言论，真实可靠且有证据。
据说人无完人。又据说磨练出完美。你们对下词好吗?
The most sustainable forests are those where local communities have both a stake and a voice.