快乐是生活的关键。没有快乐，你就一无所有。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.
乐观是一种可以学习的技能。
精神生活是对环境的持续调整。
Great companies don't just chase profits; they create value for everyone involved.
过去从未死去，它甚至还没有过去。