What about this quote by F. Douglass since it's for a professor?
“Without education he lives within the narrow, dark and grimy walls of ignorance. … Education, on the other hand, means emancipation. It means light and liberty. It means the uplifting of the soul of man into the glorious light of truth, the light by which men can only be made free. To deny education to any people is one of the greatest crimes against human nature. It is easy to deny them the means of freedom and the rightful pursuit of happiness and to defeat the very end of their being.”
— Blessings of Liberty and Education, Manassas, Va., 1894