Oh leave the Wise our measures to collate. One thing at least is certain, light has weight. One thing is certain and the rest debate. Light rays, when near the Sun, do not go straight.

Philosophically, the notion of a beginning of the present order of Nature is repugnant to me ... I should like to find a genuine loophole.

Human life is proverbially uncertain; few things are more certain than the solvency of a life-insurance company.

An ocean traveler has even more vividly the impression that the ocean is made of waves than that it is made of water.

Every body continues in its state of rest or uniform motion in a straight line, except insofar as it doesn't.

Man is slightly nearer to the atom than to the star. ... From his central position man can survey the grandest works of Nature with the astronomer, or the minutest works with the physicist. ... [K]nowledge of the stars leads through the atom; and important knowledge of the atom has been reached through the stars.

What is possible in the Cavendish Laboratory may not be too difficult in the sun.