First, it is necessary to study the facts, to multiply the number of observations, and then later to search for formulas that connect them so as thus….

I shall never flaunt the little learning that I have acquired through the care and help my father has given me. If I have learned anything, it is onl….

As for methods I have sought to give them all the rigour that one requires in geometry, so as never to have recourse to the reasons drawn from the ge….

I am a Christian which means that I believe in the deity of Christ, like Tycho de Brahe, Copernicus, Descartes, Newton, Leibnitz, Pascal… like all gr….

Residues arise... naturally in several branches of analysis... Their consideration provides simple and easy-to-use methods, which are applicable to a….

Men pass away, but their deeds abide. [His last words.].