Famous quotes containing the words biological and/or role:
“Although there is no universal agreement as to a definition of life, its biological manifestations are generally considered to be organization, metabolism, growth, irritability, adaptation, and reproduction.”
—The Columbia Encyclopedia, Fifth Edition, the first sentence of the article on “life” (based on wording in the First Edition, 1935)
“The real test of a man is not how well he plays the role he has invented for himself, but how well he plays the role that destiny assigned to him.”
—Jan Patocka (1907–1977)