Famous quotes containing the words cast and/or copies:
“Like a bad doctor who has fallen down sick you are cast down, and cannot find what sort of drugs would cure your ailment.”
—Aeschylus (525–456 B.C.)
“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)