Our earthly fire again, no matter how fierce or widespread it may be, is always of a limited extent; but the lake of fire in hell is boundless, shoreless and bottomless.

Because the area occupied by an image is proportional to the square of the focal length of the lens, the light intensity over the image area is directly proportional to the diametre of the lens and inversely proportional to the square of the focal length.

This office is plenty big enough for our needs.

If there were two balls and two strikes on a batter, with two outs in an inning—what is called “deuces wild” in baseball—the bullpen would work like mad to get its pitcher out of the inning.