Letters 44.2

You are a Roman knight, and your persistent work promoted you to this class; yet surely there are many to whom the fourteen rows are barred; the senate-chamber is not open to all; the army, too, is scrupulous in choosing those whom it admits to toil and danger. But a noble mind is free to all men; according to this test, we may all gain distinction. Philosophy neither rejects nor selects anyone; its light shines for all.

Seneca, Letters to Lucilius 44.2, translated by Richard Mott Gummere