I am not a liberal. (If you feel the need to group people together, I am a libertarian socialist)
However, a liberal is some one who is willing to respect or accept behavior or opinions different from one's own, they are open to new ideas and they are favorable to or respectful of individual rights and freedoms. In a political context liberals favor individual liberty, free trade, and moderate political and social reform.
Just because you are not educated, it does not mean other people are stupid.