The Principia Mathematica, written by mathematician-philosophers Alfred North Whitehead and Bertrand Russell, is a three-volume book that explores the foundations of mathematics using formal logic and a minimal number of axioms. It was the first publication to clearly demonstrate the connection between mathematics and formal logic. This landmark work has been recognized as a major intellectual achievement and was later amended by Isaac Newton himself. Published in Latin in 1687, Newton's most famous work explains the laws governing the motion of physical objects, both celestial and terrestrial.