Famous quotes containing the words biological and/or sources:
“Man’s biological weakness is the condition of human culture.”
—Erich Fromm (1900–1980)
“No drug, not even alcohol, causes the fundamental ills of society. If we’re looking for the sources of our troubles, we shouldn’t test people for drugs, we should test them for stupidity, ignorance, greed and love of power.”
—P.J. (Patrick Jake)