The world is a cruel place, but it is also beautiful.

感官训练可以培养敏锐的观察者，适应现在的文明时代，更能实际地应用于日常生活中。

简单性是一种伟大的美德，但需要努力工作才能实现，需要教育才能欣赏。简单性是最终的复杂性。

Man is always something more than what he knows about himself. He is not what he is simply once and for all, but is a process.

艺术超越国界；它说一种人人都能理解的通用语言。

在科学中，失败不是成功的对立面，而是通向成功的垫脚石。