老脑筋就像老马；如果你想保持它们的工作状态，就必须锻炼它们。
The jaws of power are always open to devour, and her arm is always stretched out, if possible, to destroy the freedom of thinking, speaking, and writing.
There is nothing which I dread so much as a division of the republic into two great parties, each arranged under its leader, and concerting measures in opposition to each other.
我最害怕的莫过于共和国分裂成两个大党，每个党都在其领导人的领导下，相互对立地制定措施。
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.
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。
Liberty cannot be preserved without a general knowledge among the people.
The right of a nation to kill a tyrant in case of necessity can never be doubted.
在必要时，一个国家杀死暴君的权利永远不应受到质疑。
There is danger from all men. The only maxim of a free government ought to be to trust no man living with power to endanger the public liberty.
所有人都存在危险。自由政府的唯一准则应该是不要信任任何拥有权力的人，以免危及公共自由。
The balance of power is the scale of peace.
权力的平衡是和平的天平。
The jaws of power are always open to devour, and her arm is always stretched out, if possible, to destroy the freedom of thinking, speaking, and writing.
权力的下颚总是张开着要吞噬，如果可能的话，她的手臂总是伸出来，以摧毁思想、言论和写作的自由。
The fundamental law of the militia is, that it be created, directed and commanded by the laws, and ever for the support of the laws.
民兵的基本法是，它由法律创建、指导和指挥，永远为支持法律而存在。
Power always thinks it has a great soul and vast views beyond the comprehension of the weak.
权力总是认为它有一个伟大的灵魂和超越弱者理解的广阔视野。
I must study politics and war that my sons may have liberty to study mathematics and philosophy.