"We are all prisoners of our own memories, and the key to freedom lies in understanding them."
我们都被自己的记忆所囚禁，而自由的关键在于理解它们。
It is not unlikely, but that there may be yet invented several other helps for the eye, as much exceeding those already found, as those do the bare eye.
Liberty cannot be preserved without a general knowledge among the people.
政治制度的力量在于其适应不断变化的环境并吸收新思想和实践的能力。