Famous quotes containing the words cast and/or copies:
“Just as the creative artist is not allowed to choose, neither is he permitted to turn his back on anything: a single refusal, and he is cast out of the state of grace and becomes sinful all the way through.”
—Rainer Maria Rilke (1875–1926)
“We can come up with a working definition of life, which is what we did for the Viking mission to Mars. We said we could think in terms of a large molecule made up of carbon compounds that can replicate, or make copies of itself, and metabolize food and energy. So that’s the thought: macrocolecule, metabolism, replication.”
—Cyril Ponnamperuma (b. 1923)