It is impossible to represent to oneself empty space ... Thence comes the irreducible relativity of space. Whoever speaks of absolute space uses a meaningless phrase. ... I am at a determinate point in Paris, place du Pantheon for instance, and I say: I shall come back here to-morrow. ... In sum, I meant to say: To- morrow I shall see again the dome and the pediment of the Pantheon
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Published before 1923