Quality is not a concept; it is a reality.
质量不是概念;它是一种现实。
变革在中间阶段最为艰难。
理性预期假说并不意味着人们能完美预测未来;它意味着人们不会犯系统性错误。
I don't need a reason to be confident.
The highest endeavor of the mind, and the highest virtue, is to understand things by intuition.