Famous quotes containing the words test and/or flights:
“Whenever a true theory appears, it will be its own evidence. Its test is, that it will explain all phenomena.”
—Ralph Waldo Emerson (1803–1882)
“It is true that writers often owe their most inspired thoughts, their most extraordinary phrases, to their generous typesetters, who assist their flights of fancy with so-called typographical errors.”
—E.T.A.W. (Ernst Theodor Amadeus Wilhelm)