Delta Wave Activity

Famous quotes containing the words wave and/or activity:

“We are caught up Mr. Perry on a great wave whether we will or no, a great wave of expansion and progress. All these mechanical inventions—telephones, electricity, steel bridges, horseless vehicles—they are all leading somewhere. It’s up to us to be on the inside in the forefront of progress.”
—John Dos Passos (1896–1970)

“For art to exist, for any sort of aesthetic activity or perception to exist, a certain physiological precondition is indispensable: rapture.”
—Friedrich Nietzsche (1844–1900)