A quotation by Leone Battista Alberti
A man can do all things if he but wills them.
When I investigate and when I discover that the forces of the heavens and the planets are within ourselves, then truly I seem to be living among the gods.
In Francesco De Sanctis, History of Italian literature (1959)
Beauty: the adjustment of all parts proportionately so that one cannot add or subtract or change without impairing the harmony of the whole.