Famous quotes containing the words silver and/or compounds:
“The intelligent have a right over the ignorant, namely, the right of instructing them. The right punishment of one out of tune, is to make him play in tune; the fine which the good, refusing to govern, ought to pay, is, to be governed by a worse man; that his guards shall not handle gold and silver, but shall be instructed that there is gold and silver in their souls, which will make men willing to give them every thing which they need.”
—Ralph Waldo Emerson (1803–1882)
“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)