should do or leave undone; because position and circumstances are in
no two cases alike, and difference of character gives a peculiar,
individual tone to what a man does. Hence _duo cum faciunt idem, non
est idem_--two persons may do the same thing with a different result.
A man should act in accordance with his own character, as soon as he
has carefully deliberated on what he is about to do.
The outcome of this is that _originality_ cannot be dispensed with in
practical matters: otherwise, what a man does will not accord with
what he is.