There's no stopping a man who knows he's in the right and keeps a-coming.

Trade is much superior to piracy. You can rob and kill a man but once, but you can cheat him again and again.

Even those who fancy themselves the most progressive will fight against other kinds of progress, for each of us is convinced that our way is the best way.

I wonder why it is the man who pleads for mercy never gives it.

You are your own best teacher. My advice is to question all things. Seek for answers, and when you find what seems to be an answer, question that, too.

To a fool time brings only age not wisdom.

To make democracy work, we must be a nation of participants, not simply observers. One who does not vote has no right to complain.