... Nature is destitute of those views which actuate man; she acts necessarily, because she exists: her system is immutable, and founded upon the essence of things... 
Paul Henri Thiery (Baron D'Holbach) Samuel Wilkinson 「The System of Nature, Volume 2」
...This idea seems to actuate all animals when in thelast stage of thirst...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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