Optical Phenomena

Famous quotes containing the words optical and/or phenomena:

“There is an optical illusion about every person we meet.”
—Ralph Waldo Emerson (1803–1882)

“The method of scientific investigation is nothing but the expression of the necessary mode of working of the human mind. It is simply the mode in which all phenomena are reasoned about, rendered precise and exact.”
—Thomas Henry Huxley (1825–95)