"It will be found that everything depends on the composition of the forces with which the particles of matter act upon one another; and from these forces, as a matter of fact, all phenomena of Nature take their origin."

Next Quote

From building a fire one can learn something about artistic composition. If you use only small kindling and large logs, the fire will quickly eat up the small pieces but will not become strong enough to attack the large ones. You must supply a scale of sizes from the smallest to the largest. The human eye also will not make its way into a painting or building unless a continuum of shapes leads from the small to the large, from the large to the small.

— Rudolf Arnheim