Famous quotes containing the words scientific and/or theories:
“The scientific spirit is of more value than its products, and irrationally held truths may be more harmful than reasoned errors.”
—Thomas Henry Huxley (1825–95)
“It takes twenty or so years before a mother can know with any certainty how effective her theories have been—and even then there are surprises. The daily newspapers raise the most frightening questions of all for a mother of sons: Could my once sweet babes ever become violent men? Are my sons really who I think they are?”
—Mary Kay Blakely (20th century)