"Physics without interpretation is only part of the story, and ... theories like quantum mechanics need careful foundational reflection." Harvey Brown, born 4 April 1950.
"The only effectual method of impressing abstract formulae and rules upon the memory, and, indeed, of making them fully and clearly apprehended by the understanding, is by examples of their practical application." Dionysius Lardner, born 3 April 1793.
"Light propagates and spreads not only directly, through refraction, and reflection, but also by a fourth mode, diffraction. ... Occasionally, light added to itself may give obscure surfaces on a body that has already received light." Francesco Maria Grimaldi, born 2 April 1618.
"Science is the future of mankind." Claude Cohen-Tannoudji, born 1 April 1933.
"Nature was not satisfied by a simple point charge but required a charge with spin." Sin-Itiro Tomonaga, born 31 March 1906.
"Over the past fifty years or so, scientists have allowed the conventions of expression available to them to become entirely too confining." David Mermin, born 30 March 1935.
"Publish an invention freely, and it will almost surely die from lack of interest in its development." Elihu Thomson, born 29 March 1853.