——回答清华学生“国民党施行的，是否俄国的主义？”，1924年2月9日
我不是环境的产物，我是我的决定的产物。
"We are all astronauts on a little spaceship called Earth."
Government, even in its best state, is but a necessary evil; in its worst state, an intolerable one.
The future of manufacturing lies in smart technology and skilled craftsmanship working together.
The pursuit of knowledge is a never-ending journey.