Will Durant said this quote

The first source of art, then, is akin to the display of colors and plumage on the male animal in mating time; it lies in the desire to adorn and beautify the body. And just as self-love and mate-love, overflowing, pour out their surplus of affection upon nature, so the impulse to beautify passes from the personal to the external world. The soul seeks to express its feeling in objective ways, through color and form; art really begins when men undertake tobeautify things.