Quadratic Difference Tones

Famous quotes containing the words difference and/or tones:

“What difference is there, do you think, between those in Plato’s cave who can only marvel at the shadows and images of various objects, provided they are content and don’t know what they miss, and the philosopher who has emerged from the cave and sees the real things?”
—Desiderius Erasmus (c. 1466–1536)

“‘Tis not that thy mien is stately,
‘Tis not that thy tones are soft;”
—Charles Stuart Calverley (1831–1884)