Famous quotes containing the words physical and/or force:
“I hope I may claim in the present work to have made it probable that the laws of arithmetic are analytic judgments and consequently a priori. Arithmetic thus becomes simply a development of logic, and every proposition of arithmetic a law of logic, albeit a derivative one. To apply arithmetic in the physical sciences is to bring logic to bear on observed facts; calculation becomes deduction.”
—Gottlob Frege (1848–1925)
“Sentiment is the mightiest force in civilization; not sentimentality, but sentiment. Women will bring this into politics. Home, sweet home, is as powerful on the hustings as at the fireside.”
—J. Ellen Foster (1840–1910)