Barrier/biology

Famous quotes containing the words barrier and/or biology:

“The hearts of Afro-American women are too warm and too large for race hatred. Long suffering has so chastened them that they are developing a special sense of sympathy for all who suffer and fail of justice.”
—Fannie Barrier Williams (1855–1944)

“Nothing can be more incorrect than the assumption one sometimes meets with, that physics has one method, chemistry another, and biology a third.”
—Thomas Henry Huxley (1825–95)