The Barddas of Iolo Morganwg, Vol. I., ed. by J. Williams Ab Ithel, , at sacred-texts.com
The twelve primary Negatives, called in some books the Lesson of the Gwyddoniaid, but in other books the Lesson of Tydain.
There is nothing sought after but what is precious;
There is nothing precious but what is beneficial;
There is nothing beneficial but possession;
There is no possession but Gwynvyd;
There is no Gwynvyd but knowledge;
There is no knowledge but what is new;
There is nothing new but what changes;
p. 218 p. 219
There is no change but what is advantageous;
There is no advantage but what is beautiful;
There is nothing beautiful but what is just;
There is nothing just but love;
There is no love but God.
And thus it ends.
Tydain the Father of Awen sang it, says the Book of Sion Cent.
217:3 p. 216 "Cynnegolion," the plural of "cynnegawl," a word compounded of cyn, primary, and neg, adj. negawl, negation.