It is the mark of an educated mind to be able to entertain a thought without accepting it.
The so-called Pythagoreans, who were the first to take up mathematics, not only advanced this subject, but saturated with it, they fancied that the principles of mathematics were the principles of all things.
To Thales the primary question was not what do we know, but how do we know it.
Now that practical skills have developed enough to provide adequately for material needs, one of these sciences which are not devoted to utilitarian ends [mathematics] has been able to arise in Egypt, the priestly caste there having the leisure necessary for disinterested research.
There is nothing strange in the circle being the origin of any and every marvel.
The mathematical sciences particularly exhibit order symmetry and limitations; and these are the greatest forms of the beautiful.
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