质量从来不是偶然的；它始终是智慧努力的结果。

生命、自由和共同礼仪的最坏敌人是完全的无政府状态；它们的第二坏敌人是完全的权力。

The most beautiful thing in mathematics is the simplicity of the ideas behind the complexity.

The strengths approach is about identifying what is right with people and building on those qualities.

魔鬼最伟大的伎俩是让世界相信他不存在。