Barrier/biology

Famous quotes containing the words barrier and/or biology:

    To say that a thing has never yet been done among men is to erect a barrier stronger than reason, stronger than discussion.
    Thomas Brackett Reed (1839–1902)

    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)