1
You can't teach calculus to a chimpanzee. So just share your banana.John Rachel
2
The analytical geometry of Descartes and the calculus of Newton and Leibniz have expanded into the marvelous mathematical method–more daring than anything that the history of philosophy records–of Lobachevsky and Riemann, Gauss and Sylvester. Indeed, mathematics, the indispensable tool of the sciences, defying the senses to follow its splendid flights, is demonstrating today, as it never has been demonstrated before, the supremacy of the pure reason.Nicholas Murray Butler
3
Being kidnapped and abused by the undead was worse than calculus, but not by a wide margin.Thomm Quackenbush
4
I studied calculus for the first time, which to me was an amazingly empowering experience which I could really see how you could understand all sorts of things, and I decided that chemistry and biology just had too much memory for me to be interested. Physics was very easy.Marshall Nicholas Rosenbluth
5
The teacher manages to get along still with the cumbersome algebraic analysis, in spite of its difficulties and imperfections, and avoids the smooth infinitesimal calculus, although the eighteenth century shyness toward it had long lost all point.Felix Klein