Famous quotes containing the words controlled and/or natural:
“Science is a system of statements based on direct experience, and controlled by experimental verification. Verification in science is not, however, of single statements but of the entire system or a sub-system of such statements.”
—Rudolf Carnap (1891–1970)
“For government, though high, and low, and lower,
Put into parts, doth keep in one consent,
Congreeing in a full and natural close,
Like music.”
—William Shakespeare (1564–1616)