What is common to many is least taken care of, for all men have greater regard for what is their own than what they possess in common with others.
AristotleTo enjoy the things we ought and to hate the things we ought has the greatest bearing on excellence of character.
AristotleWhat we know is not capable of being otherwise; of things capable of being otherwise we do not know, when they have passed outsideour observation, whether they exist or not. Therefore the object of knowledge is of necessity. Therefore it is eternal; for things that are of necessity in the unqualified sense are all eternal; and things that are eternal are ungenerated and imperishable.
Aristotle