Since all of us desire to be happy, and since we evidently become so on account of our useโthat is our good useโof other things, and since knowledge is what provides this goodness of use and also good fortune, every man must, as seems plausible, prepare himself by every means for this: to be as wise as possible. Right?
SocratesOne who is injured ought not to return the injury, for on no account can it be right to do an injustice.
Socrates