“The gravitational repulsion created by this small patch of repulsive gravity material would be, then, the driving force of the Big Bang and it would cause the region to undergo exponential expansion… there is a certain doubling time, and if you wait the same amount of time it doubles again, and if you wait the same amount of time it doubles again… and it's because these doublings build up so dramatically, it doesn't take very much time to build the whole universe. In about 100 doublings this tiny patch of 10-28 cm can become large enough, not to be the universe, but to be a small marble-sized region which will then ultimately become the observed universe, as it continues to coast outward after inflation ends.”

“I hope you have not been leading a double life, pretending to be wicked and being really good all the time. That would be hypocrisy.”

“Marriage is the highest state of friendship. If happy, it lessens our cares by dividing them, at the same time that it doubles our pleasures by mutual participation.”

“I'd be surprised if Ronald Reagan doesn't run again. To us it's a second term. To him it's a double feature.”

“If funkytown was a trailerpark, this guy would be a double-wide.”

“Double, double, toil and trouble;
Fire burn, and cauldron bubble!”

“Faith loves to lean on time's destroying arm,
And age, like distance, lends a double charm.”

“There is perhaps no question that occupies, comparatively, a larger space in the history of Greek geometry than the problem of the Doubling of the Cube. The tradition concerning its origin is given in a letter from Eratosthenes of Cyrene to King Ptolemy Euergetes quoted by Eutocius…
"Eratosthenes to King Ptolemy greeting.
"There is a story that one of the old tragedians represented Minos as wishing to erect a tomb for Glaucus and as saying, when he heard that it was a hundred feet every way,Too small thy plan to bound a royal tomb.
Let it be double; yet of its fair form
Fail not, but haste to double every side.But he was clearly in error; for when the aides are doubled, the area becomes four times as great, and the solid content eight times as great. Geometers also continued to investigate the question in what manner one might double a given solid while it remained in the same form.”

“There's a double beauty whenever a swan
Swims on a lake with her double thereon.”

“Before hastening to secure a possible reward of five taels by dragging an unobservant person away from a falling building, examine well his features lest you find, when too late, that it is one to whom you are indebted for double that amount.”