“Each man reaps on his own farm.”
Act III, sc. 2, line 112; reported in Bartlett's Familiar Quotations, 10th ed. (1919).
Mostellaria (The Haunted House)
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Plautus 54
Roman comic playwright of the Old Latin period -254–-184 BCRelated quotes

“Let each man have the wit to go his own way.”
Unus quisque sua noverit ire via.
II, xxv, 38.
Elegies

“Until a man might travel twelve stout miles,
Or reap an acre of his neighbor's corn.”
The Brothers.
Bartlett's Familiar Quotations, 10th ed. (1919)

“Each man has two countries, I think: His own, and France.”
Henri de Bornier, La Fille de Roland, act III, scene ii, p. 65 (1875): "Tout homme a deux pays, le sien et puis la France!"
Also misattributed to Thomas Jefferson in 1880 http://query.nytimes.com/mem/archive-free/pdf?res=940CE2DB143FEE3ABC4151DFB166838B699FDE
Misattributed

“In their religion they are so uneven,
That each man goes his own byway to heaven.”
Pt. II, l. 104.
The True-Born Englishman http://www.luminarium.org/editions/trueborn.htm (1701)

“Each man does seek his own interest, but, unfortunately, not according to the dictates of reason.”
Source: Man, the State, and War (1959), Chapter II, The First Image, p. 23

"The Conservation Ethic" [1933]; Published in The River of the Mother of God and Other Essays by Aldo Leopold, Susan L. Flader and J. Baird Callicott (eds.) 1991, p. 191.
1930s