柠檬问题发生的原因是卖家比买家更了解产品,从而导致市场失灵。
心灵不是被动的镜子,而是生活的积极参与者。
运气与此无关,因为我花了无数个小时在球场上训练,只为那一刻的到来。
The value of freedom is truly understood only when lost.
Behavior is determined by the current stimulus situation and past reinforcement history.
Leadership is about inspiring others to see what they can become, not just what they are.
Courage is resistance to fear, mastery of fear - not absence of fear.