Famous quotes containing the word vis:
“I have thought of a pulley to raise me gradually; but that would give me pain, as it would counteract my natural inclination. I would have something that can dissipate the vis inertiae and give elasticity to the muscles.... We can heat the body, we can cool it; we can give it tension or relaxation; and surely it is possible to bring it into a state in which rising from bed will not be a pain.”
—Samuel Johnson (1709–1784)