Knowing thyself is the height of wisdom.
Not I, but the city teaches.
...one thing I am ready to fight for as long as I can, in word and act: that is, that we shall be better, braver and more active men if we believe it right to look for what we don't know than if we believe there is no point in looking because what we don't know we can never discover.
True wisdom lies in one's confession about the limits of one's knowledge.
If you can do only a little. Do what you can. What you cannot enforce, do not command.
Give me beauty in the inward soul; and may the outward and inward may be one.