Liberty is obedience to the law which one has laid down for oneself

Too much apparatus, designed to guide us in experiments and to supplement the exactness of our senses, makes us neglect to use those senses...The more ingenious our apparatus, the coarser and more unskillful are our senses. We surround ourselves with tools and fail to use those which nature has provided every one of us.

We lose all that time which we might employ better.

The empire of woman is an empire of softness, of address, of complacency. Her commands are caresses, her menaces are tears.

There is no folly of which a man who is not a fool cannot get rid except vanity; of this nothing cures a man except experience of its bad consequences, if indeed anything can cure it.

How many famous and high-spirited heroes have lived a day too long?

There is peace in dungeons, but is that enough to make dungeons desirable?