“In a way it made no difference, since nothing is permanent except our illusions.”
Source: Mindswap (1966), Chapter 33 (pp. 156-157)
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Robert Sheckley 114
American writer 1928–2005Related quotes

Letter to Jean-Baptiste Le Roy (13 November 1789)
First published in The Private Correspondence of Benjamin Franklin (1817) p.266 https://books.google.de/books?id=jY8EAAAAYAAJ&pg=PA266&dq=constitution
The Yale Book of Quotations quotes “‘Tis impossible to be sure of any thing but Death and Taxes,” from Christopher Bullock, The Cobler of Preston (1716). The YBQ also quotes “Death and Taxes, they are certain,” from Edward Ward, The Dancing Devils (1724).
Epistles

The Gander, in Book Seven : What Saraïde Wanted, Ch. XLV : The Gander Also Generalizes
The Silver Stallion (1926)
Context: Nothing … nothing in the universe, is of any importance, or is authentic to any serious sense, except the illusions of romance. For man alone of animals plays the ape to his dreams. These axioms — poor, deaf and blinded spendthrift! — are none the less valuable for being quoted.

“Harry: Tradition is the illusion of permanence.”
Deconstructing Harry (1997)

“Nothing is permanent in this wicked world, not even our troubles.”

“Gone had come to mean something different, in a way that is hadn’t used to. Something permanent.”
Source: It's Not Summer Without You

“I stress that the universe is made mostly of nothing, that something is the exception.”
The Varieties of Scientific Experience: A Personal View of the Search for God (2006)

“Day and night are nothing more than illusions before our eyes.”