This is a poem by John Dunbar (c. 1585 - 1626), a Scottish neo-Latin poet. You can read more about Dunbar at Dana Sutton's online edition of Dunbar's epigrammatic poetry.
Nil ego doctoris titulos aut nomina curo;
Sit doctor qui vult, sim modo doctus ego.
The vocabulary is keyed to the DCC Latin Vocabulary list. There are two words in this poem that are not on the DCC list:
doctor (doctōris, m.): doctor, teacher, instructor
titulus (titulī, m.): title, label, claim to fame
cūrō -āre: care for (+ acc.)
dē: down from, about, concerning (+ abl.)
doceō -ēre -uī doctum: teach
ego meī mihi mē: I, me
ipse ipsa ipsum: him- her- itself
modo: just, just now
nihil, nīl: nothing; not at all
nōmen -inis n.: name
qui quae quod: who, which, what / quis quid: who? what? which?
sui, sibi, sē: him- her- itself
sum, esse, fuī: be, exist
volō velle voluī: wish, be willing