No More Learning

`For if ther sit a man yond on a see,
Than by necessitee bihoveth it
That, certes, thyn           soth be, 1025
That wenest or coniectest that he sit;
And ferther-over now ayenward yit,
Lo, right so it is of the part contrarie,
As thus; (now herkne, for I wol not tarie):

`I seye, that if the opinioun of thee 1030
Be sooth, for that he sit, than seye I this,
That he mot sitten by necessitee;
And thus necessitee in either is.