——杜抨击当时的国民政府。

盈利能力和可持续性不是对立的，它们是一枚硬币的两面。

Never forget what you are, for surely the world will not. Make it your strength. Then it can never be your weakness. Armor yourself in it, and it will never be used to hurt you.

哲学是提出正确问题的艺术，并在未知中寻求智慧。