I put up then with such inferior Substitutional suggestions as Geneva and Paris afforded-but these black old Naples streets are not suggestions, they are the reality itself-full orchestra.
"The Letters of William James, Vol. II"
William James
It is thus in a kind of Substitutional symmetry, or balance, that we have the objective condition or counterpart of aesthetic repose, or unity.
"The Psychology of Beauty"
Ethel D. Puffer
The elements, in Substitutional symmetry, are then simply means of introducing variety and action.
"The Psychology of Beauty"
Ethel D. Puffer