Of him it was said, and with truth, that he could build a ship and sail it, frame a harp and make it speak, write an ode and set it to music.

Yet that saying, eulogistic as it is, is far from expressing all the vast powers and acquirements of Lewis Morris.

Though self-taught, he was confessedly the best Welsh scholar of his age, and was well-versed in those cognate dialects of the Welsh--the Cornish, Armoric, Highland Gaelic and Irish.
He was likewise well acquainted with Hebrew, Greek and Latin, had studied Anglo-Saxon with some success, and was a writer of bold and vigorous English.

He was besides a good general antiquary, and for knowledge of ancient Welsh customs, traditions, and superstitions, had no equal.

Yet all has not been said which can be uttered in his praise; he had qualities of mind which entitled him to higher esteem than any accomplishment connected with intellect or skill.