To know that we know what we know, and to know that we do not know what we do not know, that is true knowledge.
Heliocentric model of the solar system
A philosophical reflection on the nature of knowledge.
Approximate
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"It is the duty of a good astronomer to seek for truth in all things, and to follow it wherever it may lead."
Strange & Unusual"For it is the work of a good mathematician to compute the motions of the heavenly bodies, and to predict their positions at any given time."
Strange & Unusual"The Sun, the Moon, and the five wandering stars are all governed by the same laws."
Strange & Unusual"In the middle of all sits the Sun enthroned. In this most beautiful temple, could we place this luminary in any better position from which he can illuminate the whole at once?"
Controversial"I have been so long in preparing this work that I have almost despaired of publishing it."
Strange & Unusual