The art of progress is to preserve order amid change and to preserve change amid order.

The deepest problems of modern life derive from the claim of the individual to preserve the autonomy and individuality of his existence in the face of overwhelming social forces, of historical heritage, of external culture, and of the technique of life.

Beware the barrenness of a busy life.

人，与宇宙中任何其他有机或无机的事物不同，超越了他的工作，走上他的概念的楼梯，超越了他的成就。

人生好比是一次航程。

智力的衡量标准是改变的能力。