Happiness is not just the absence of sadness; it's the presence of meaning.

Sustainability is not just a buzzword, it's a commitment to future generations.

世界是一个黑暗的地方，但其中也有光明。你只需要去寻找。

过去是幽灵，未来是梦，现在只是转瞬即逝的瞬间。

宪政经济学是一个研究约束选择而非约束内选择的研究计划。