The 40% solution: The capacity to increase happiness is within our personal control.
The cost of inequality is borne not just by those who are disadvantaged but by society as a whole.
灵魂是心理生活的统一体。
世界上充满了显而易见的事情,却没有人注意到。
食物的未来取决于我们今天如何对待土壤。