“Every man shall be entitled to a sound and objective education and there shall be genuine equality of opportunity. Education shall be a matter of environment as well as of instruction, and everyone shall be entitled to an education untouched by the interests of any party or religion.”

1960s, The American Promise (1965)
Context: This was the first nation in the history of the world to be founded with a purpose. The great phrases of that purpose still sound in every American heart, North and South: "All men are created equal" — "government by consent of the governed" — "give me liberty or give me death." Well, those are not just clever words, or those are not just empty theories. In their name Americans have fought and died for two centuries, and tonight around the world they stand there as guardians of our liberty, risking their lives. Those words are a promise to every citizen that he shall share in the dignity of man. This dignity cannot be found in a man's possessions; it cannot be found in his power, or in his position. It really rests on his right to be treated as a man equal in opportunity to all others. It says that he shall share in freedom, he shall choose his leaders, educate his children, and provide for his family according to his ability and his merits as a human being.

Election address for the 1885 general election, quoted in Blanche E. C. Dugdale, Arthur James Balfour, First Earl of Balfour, K.G., O.M., F.R.S., Etc. 1848–1905 (London: Hutchinson & Co. Ltd, 1936), p. 72
President of the Local Government Board

Letter to John Adams (14 August 1776)
Context: If you complain of neglect of Education in sons, what shall I say with regard to daughters, who every day experience the want of it? With regard to the Education of my own children, I find myself soon out of my depth, destitute and deficient in every part of Education.
I most sincerely wish that some more liberal plan might be laid and executed for the Benefit of the rising Generation, and that our new Constitution may be distinguished for encouraging Learning and Virtue. If we mean to have Heroes, Statesmen and Philosophers, we should have learned women. The world perhaps would laugh at me and accuse me of vanity, But you I know have a mind too enlarged and liberal to disregard the Sentiment. If much depends as is allowed upon the early education of youth and the first principles which are instill'd take the deepest root, great benefit must arise from literary accomplishments in women.

"Not Palaces" (l. 23–25)

Education for All People and Education for Life

"Conservation" (c. 1938); Published in Round River, Luna B. Leopold (ed.), Oxford University Press, 1966, p. 155.
1930s
Source: Round River: From the Journals of Aldo Leopold

XXVI Sermons, No. 26, Death's Duel, last sermon, February 15, 1631