"In
his early days on earth, man knew a limited
number of scientific facts, increasing the number
with painful slowness as the centuries went
by. Within the past few hundred years, particularly
during the twentieth century, they have been
acquired at a prodigious rate. A rolling snowball
must finally come to rest, but there is no indication
that scientific knowledge will ever cease to
grow."
(The New World of Chemistry A 1955 high school
chemistry text by Bernard Jaffe.)
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