数学的力量在于它的普遍性和抽象性。
人们说逝者总是在俯视着我们。但我们从不回望。
Words have the power to heal, but they can also wound deeply.
我们对野生动物的爱与对人类之爱有着天壤之别。
Forests are not just carbon sinks—they are life sources.
模型最重要的不是其假设,而是其结论。