因果推理需要仔细思考分析背后的假设。
你知道,有些鸟是注定不会关在牢笼里的,它的每一片羽毛都闪耀着自由的光辉。
Don't be swayed by others' opinions, be your truest self.
The great challenge of our time is to create a world order that is both just and sustainable.