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“In the visible world, the Milky Way is a tiny fragment; within this fragment, the solar system is an infinitesimal speck, and of this speck our planet is a microscopic dot. On this dot, tiny lumps of impure carbon and water, of complicated structure, with somewhat unusual physical and chemical properties, crawl about for a few years, until they are dissolved again into the elements of which they are compounded.”
― Bertrand Russell

“Love of God," he said slowly, searching for words, "is not always
the same as love of good, I wish it were that simple. We know what
is good, it is written in the Commandments. But God is not
contained only in the Commandments, you know; they are only an
infinitesimal part of Him. A man may abide by the Commandments
and be far from God.”
― Hermann Hesse

“Foreshadowings of the principles and even of the language of [the infinitesimal] calculus can be found in the writings of Napier, Kepler, Cavalieri, Fermat, Wallis, and Barrow. It was Newton's good luck to come at a time when everything was ripe for the discovery, and his ability enabled him to construct almost at once a complete calculus.”
― W.W. Rouse Ball, A Short Account of the History of Mathematics

“Our infinitesimal hopes should survive longer than our vast disappointments”
― Munia Khan

“A quantity is something or nothing: if it is something, it has not yet vanished; if it is nothing, it has literally vanished. The supposition that there is an intermediate state between these two is a chimera.

D'Alembert”
― Carl B. Boyer, The History of the Calculus and Its Conceptual Development