The substance of the world can only determine a form and not any material properties.
 Ludwig Wittgenstein, Tractatus Logico-Philosophicus (1921). copy citation

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Author Ludwig Wittgenstein
Source Tractatus Logico-Philosophicus
Topic property world
Date 1921
Language English
Reference
Note Translated by C. K. Ogden
Weblink http://www.gutenberg.org/files/5740/5740-pdf.pdf

Context

“It is clear that however different from the real one an imagined world may be, it must have something—a form—in common with the real world. 2.023 OGD [→GER | →P/M] This fixed form consists of the objects. 2.0231 OGD [→GER | →P/M] The substance of the world can only determine a form and not any material properties. For these are first presented by the propositions—first formed by the configuration of the objects. 2.0232 OGD [→GER | →P/M] Roughly speaking: objects are colourless. 2.0233 OGD [→GER | →P/M] Two objects of the same logical form are—apart from their external properties—only differentiated from one another in that they are different.” source