And of all the artifacts that have aided cognition, the most important is the development of writing, or more properly, of notational systems: number systems, writing, calendars, notational systems for mathematics, engineering, music and dance.

FORBES: Magazine Article

He was admitted and earned a degree in engineering and then a doctorate from Stanford, in a branch of engineering called operations research, which uses mathematics to organize systems with lots of moving parts.

FORBES: Magazine Article