The mind is a dynamic equilibrium of processes.

The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.

市场效率并不意味着价格总是正确的，而是意味着价格不可能被一致预测。