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)

    “The “control of nature” is a phrase conceived in arrogance, born of the Neanderthal age of biology and the convenience of man.”
    —Rachel Carson (1907–1964)