Most of the things worth doing in the world had been declared impossible before they were done.
—Louis Brandeis (1856–1941) American Jurist
I am proud of the fact that I never invented weapons to kill.
—Thomas Edison (1847–1931) American Inventor, Scientist, Entrepreneur
Discovery consists in seeing what everyone else has seen and thinking what no one else has thought.
Today every invention is received with a cry of triumph which soon turns into a cry of fear.
—Bertolt Brecht (1898–1956) German Poet, Playwright, Theater Personality
A tool is but the extension of a man’s hand and a machine is but a complex tool; and he that invents a machine augments the power of man and the well-being of mankind.
—Henry Ward Beecher (1813–87) American Clergyman, Writer