No citizen has any right to be an amateur in the matter of physical training; it is part of his profession as a citizen to keep himself in good condition... [It is] a disgrace for a man to grow old without seeing the beauty and the strength of which his body is capable.
SocratesI am wiser than this man, for neither of us appears to know anything great and good; but he fancies he knows something, although he knows nothing; whereas I, as I do not know anything, so I do not fancy I do. In this trifling particular, then, I appear to be wiser than he, because I do not fancy I know what I do not know.
Socrates