man is the measure of all things

English edit

 
Vitruvian Man, a drawing by Leonardo da Vinci, sometimes associated with this phrase.

Etymology edit

According to Plato, the phrase was coined by Greek philosopher Protagoras.

Phrase edit

man is the measure of all things

  1. (an expression of) the doctrine that all knowledge is subjective, being derived from observations made by humans, and there can be no objective truth

Translations edit