Famous quotes containing the words main and/or ingredient:
“In most books, the I, or first person, is omitted; in this it will be retained; that, in respect to egotism, is the main difference.”
—Henry David Thoreau (1817–1862)
“Logic is the last scientific ingredient of Philosophy; its extraction leaves behind only a confusion of non-scientific, pseudo problems.”
—Rudolf Carnap (1891–1970)