The city is the ultimate expression of our civilization.
农业的可持续性不是一种选择,而是对后代子孙的必要责任。
资本资产定价模型并非旨在描述投资者实际行为的实证理论,而是关于理性投资者应如何行事的规范理论。
The act of writing is an act of self-discovery.
The fight for sustainability is the fight for our future.