虚假的幸福使人变得刻薄和傲慢，而这种幸福从不传播。真正的幸福使他们善良和明智，而这种幸福总是分享的。
The only way to achieve the impossible is to believe it is possible.
The most important part of teaching is to teach what it is to know.
Between stimulus and response there is a space. In that space is our power to choose our response. In our response lies our growth and our freedom.