[Galileo to Liceti January 1641, translated by Drake:] The problem or question of the center … consideration in all astronomy … Likewise to want to assign a center to … a shape, is in my opinion a superfluous … But if we wish to consider the lower … [which] therefore must have a center for their turnings, then to … false. … [p. 412] [The centers of the planets' orbits] are more or less located around … as to this matter, my good sir, in … persuade people of a doctrine too obviously false. …
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