Simplicity Is The Ultimate Sophistication

This aphorism is widely attributed to Leonardo da Vinci but no Italian original has been found in his surviving notebooks. Quote investigators have been unable to locate the phrase in Leonardo's manuscripts edited by Jean Paul Richter or in any other primary source. The earliest attribution to da Vinci identified by researchers appeared only around 2000; before that, the phrase circulated without attribution or was linked to others. It was notably used as an Apple Computer advertising slogan in 1977.