Eubulides of Miletus was a philosopher of the Megarian school who is famous for his paradoxes.
Eubulides
Euclid of Megara was a Greek Socratic philosopher who founded the Megarian school of philosophy. He was a pupil of Socrates in the late 5th century BC, and was present at his death. He held the supreme good to be one, eternal and unchangeable, and denied the existence of anything contrary to the good. Editors and translators in the Middle Ages often confused him with Euclid of Alexandria when discussing the latter's Elements.
Euclid of Megara
Euclid of Megara Dressing as a Woman to Hear Socrates Teach in Athens, by Domenico Marolì, c. 1650