Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.

I'm just trying to be the best I can be and stay positive.

Life is not a paragraph, and death is no parenthesis.

伊卡洛斯的翅膀或许并不遥远。与其害怕失败的可能，我宁愿飞翔然后坠落。

写作的行为是对遗忘的抵抗。

量化金融最重要的教训是，你必须理解模型的局限性。