David Hume (plato.standford.edu)

author

Generally regarded as one of the most important philosophers to write in English, David Hume (1711–1776) was also well known in his own time as an historian and essayist. A master stylist in any genre, his major philosophical works—A Treatise of Human Nature (1739–1740), the Enquiries concerning Human Understanding (1748) and concerning the Principles of Morals (1751), as well as his posthumously published Dialogues concerning Natural Religion (1779)—remain widely and deeply influential.

Abraham Robinson (Wikipedia) Abraham Robinson (born Robinsohn; October 6, 1918 – April 11, 1974) was a mathematician who is most widely known for development of nonstandard analysis, a mathematically rigorous system whereby infinitesimal and infinite numbers were reincorporated into modern mathematics. Nearly half of Robinson’s papers were in applied mathematics rather than in pure mathematics.