To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge. Nicolaus Copernicus
There are in fact two things, science and opinion; the former begets knowledge, the later ignorance. Hippocrates Knowledge
True friendship can afford true knowledge. It does not depend on darkness and ignorance. Henry David Thoreau Knowledge Friendship
Be noble minded! Our own heart, and not other men's opinions of us, forms our true honor. Friedrich Schiller
Well, most men have bound thier eyes with one or another handkerchief, and attached themselves to some one of these communities of opinion. This conformity makes them not false in a few particulars, author of a few lies, but false in all particulars. Thier every truth is not quite true. Thier two is not the real two, thier four is not the real four; so that every word they say chagrins us and we know not where to begin to set them right. Meantime nature is not slow to equip us in the prison uniform of the party to which we adhere. We come to wear one cut of face and figure, and aquire, by degrees, the gentlest asinine expression. Ralph Waldo Emerson
How dreadful knowledge of the truth can be when there's no help in the truth. Sophocles Truth Knowledge
