在最低阶层中保存知识的手段对公众来说比国家中所有富人的所有财产都更重要。
The preservation of the means of knowledge among the lowest ranks is of more importance to the public than all the property of all the rich men in the country.
创新不是一蹴而就的,而是需要持续不断的努力和积累。
The laws of physics are the same everywhere in the universe, and that is a profound truth that connects us all.
处于困境中的人往往只关注自己的问题,而解决问题的途径通常在于你如何解决别人的问题。