“The average TV commercial of sixty seconds has one hundred and twenty half-second clips in it, or one-third of a second. We bombard people with sensation. That substitutes for thinking.”

Source: Mrs. Dalloway

Source: The Joy of Life

The Architecture of Theories (1891)
Context: The origin of things, considered not as leading to anything, but in itself, contains the idea of First, the end of things that of Second, the process mediating between them that of Third. A philosophy which emphasises the idea of the One, is generally a dualistic philosophy in which the conception of Second receives exaggerated attention: for this One (though of course involving the idea of First) is always the other of a manifold which is not one. The idea of the Many, because variety is arbitrariness and arbitrariness is repudiation of any Secondness, has for its principal component the conception of First. In psychology Feeling is First, Sense of reaction Second, General conception Third, or mediation. In biology, the idea of arbitrary sporting is First, heredity is Second, the process whereby the accidental characters become fixed is Third. Chance is First, Law is Second, the tendency to take habits is Third. Mind is First, Matter is Second, Evolution is Third.

Now, since there is a time [period], say a year, at the end of which an idea is no longer ipso facto present, it follows that this is true of any finite interval, however short.
The Law of Mind (1892)

Summations, Chapter 58

Nobel lecture (8 December 1982) http://www.themodernword.com/gabo/gabo_nobel.html
Variant: races condemned to 100 years of solitude did not have a second opportunity on earth.
Source: One Hundred Years of Solitude
Context: The most prosperous countries have succeeded in accumulating powers of destruction such as to annihilate, a hundred times over, not only all the human beings that have existed to this day, but also the totality of all living beings that have ever drawn breath on this planet of misfortune.
On a day like today, my master William Faulkner said, "I decline to accept the end of man." I would fall unworthy of standing in this place that was his, if I were not fully aware that the colossal tragedy he refused to recognize thirty-two years ago is now, for the first time since the beginning of humanity, nothing more than a simple scientific possiblity. Faced with this awesome reality that must have seemed a mere utopia through all of human time, we, the inventors of tales, who will believe anything, feel entitled to believe that it is not yet too late to engage in the creation of the opposite utopia. A new and sweeping utopia of life, where no one will be able to decide for others how they die, where love will prove true and happiness be possible, and where the races condemned to one hundred years of solitude will have, at last and forever, a second opportunity on earth.

Journals of Ayn Rand (1997)