Ray Tracing

Famous quotes containing the words ray and/or tracing:

“Colleges, in like manner, have their indispensable office,—to teach elements. But they can only highly serve us, when they aim not to drill, but to create; when they gather from far every ray of various genius to their hospitable halls, and, by the concentrated fires, set the hearts of their youth on flame.”
—Ralph Waldo Emerson (1803–1882)

“Lexicographer: a writer of dictionaries, a harmless drudge, that busies himself in tracing the original, and detailing the signification of words.”
—Samuel Johnson (1709–1784)