“Having rationalized his economic system, that is, having saturated it with consciousness and planfulness, man will not leave a trace of the present stagnant and worm-eaten domestic life.”

"Ray Lyman Wilbur", The Washington Post, June 28, 1949

1890s, The Path of the Law (1897)

Source: Economic Analysis of Law (7th ed., 2007), Ch. 1: The Nature of Economic Reasoning

Source: The Other Side Of The Coin (2008), Chapter 5, Male Versus Female, p. 160

A Word With a Skylark, lines 5-6.

Source: The Merchant of Venice

Un poète doit laisser des traces de son passage, non des preuves. Seules les traces font rêver.
As quoted in The French-American Review (1976) by Texas Christian University, p. 132
Variant translation: A poet must leave traces of his passage, not proofs. Only traces bring about dreams.
As quoted in Popular Dissent, Human Agency, and Global Politics (2000) by Roland Bleiker, p. 50

83, a slight variant of this was later published in Parables and Paradoxes (1946):
We are sinful not merely because we have eaten of the Tree of Knowledge, but also because we have not yet eaten of the Tree of Life. The state in which we find ourselves is sinful, quite independent of guilt.
Also quoted in this form in The Parables of Peanuts (1968) by Robert L. Short, and Like a Dream, Like a Fantasy: The Zen Teachings and Translations of Nyogen (2005)
The Zürau Aphorisms (1917 - 1918)
Context: We are sinful not only because we have eaten of the Tree of Knowledge, but also because we have not yet eaten of the Tree of Life. The state in which we are is sinful, irrespective of guilt.

'Trava posle nas', Ogonek, 19 (1987). [The Demise of Marxism-Leninism in Russia, A. Brown, 2004, 100, 9780230554405, Springer]