"Euclid manages to obtain a rigorous proof without ever dealing with infinity, by reducing the problem [of the infinitude of primes] to the study of finite numbers. This is exactly what contemporary mathematical analysis does."

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One interesting feature of criticism is seen in the ease with which it discovers what Addison called the specific quality of an author. In Livy, it will be the manner of telling the story; in Sallust, personal identification with the character; in Tacitus, the analysis of the deed into its motive. If the same test be applied to painters, it will find the prominent faculty of Correggio to be manifested in harmony of effect; of Poussin, in the sentiment of his landscapes; and of Raffaelle, in the general comprehension of his subject.

— Robert Aris Willmott