"The measure of a good book is determined by how much it disturbs the reader."

The elements of consciousness are to be determined by systematic observation.

为了如今仰望太空，注视月球和遥看繁星的人们，我们发誓，我们决不允许太空被那些敌对国家（原文为旗帜）所征服，我们会看到自由与和平的旗帜在飘扬。（1962年我们选择登月演说）

唯一真正的监狱是恐惧，唯一真正的自由是从恐惧中解脱。

The real discovery is the one that makes me capable of stopping doing philosophy when I want to.

The best leaders are those who listen more than they speak.