“There are three principal means of acquiring knowledge... observation of nature, reflection, and experimentation. Observation collects facts reflection combines them experimentation verifies the result of that combination.”
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The philosopher has never killed any priests, whereas the priest has killed a great many philosophers.
People praise virtue, but they hate it, they run away from it. It freezes you to death, and in this world you've got to keep your feet warm.
Genius is present in every age, but the men carrying it within them remain benumbed unless extraordinary events occur to heat up and melt the mass so that it flows forth.
Patriotism is an ephemeral motive that scarcely ever outlasts the particular threat to society that aroused it.
