A poor man cannot rival the rich in luxury of life, but he can in luxury of knowledge. He cannot furnish his house as the wealthy can, but he can furnish his head. He cannot found a house of note, but he may found a mind of mark. Though some kingdoms may be adorned or afflicted with kings, learning has always been a republic, where all are equal who know.

Public Speaking and Debate: A Manual for Advocates and Agitators (ed. 1896)