Famous quotes containing the words year and/or terms:
“Every year lays more earth upon us, which weighs us down from aerial regions, till we go under the earth at last.”
—E.T.A.W. (Ernst Theodor Amadeus Wilhelm)
“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)