Famous quotes containing the words niagara and/or include:
“From a drop of water a logician could infer the possibility of an Atlantic or a Niagara without having seen or heard of one or the other.”
—Sir Arthur Conan Doyle (1859–1930)
“If we define a sign as an exact reference, it must include symbol because a symbol is an exact reference too. The difference seems to be that a sign is an exact reference to something definite and a symbol an exact reference to something indefinite.”
—William York Tindall (1903–1981)