"In his explicit turn back to an ancient model in search of knowledge and wisdom, Leonardo follows early humanist practice. What he finds in Vitruvius is a mathematical formula for the proportions of all parts of the human body, which results in its idealized representation as the true microcosmic measure of all things. [...]The perfection of this ideal human form corresponds visually to the early humanist belief in the unique central placement of human beings within the divine universal order and their consequent human grandeur and dignity, expressed in the philosopher Pico della Mirandola's Oration on the Dignity of Man (1486), known as the manifesto of the Renaissance."
— Anne Hudson Jones
Renaissance humanism is a worldview centered on the nature and importance of humanity that emerged from the study of Classical antiquity.
Renaissance humanists sought to create a citizenry able to speak and write with eloquence and clarity, and thus capable of engaging in the civic life of their communities and persuading others to virtuous and prudent actions. Humanism, while set up by a small elite who had access to books and education, was intended as a cultural movement to influence all of society. It was a program to revive the cultural heritage, literary legacy, and moral philosophy of the Greco-Roman civilization.
