“The future could go this way, that way. The future's futures have never looked so rocky. Don't put money on it. Take my advice and stick to the present. It's the real stuff, the only stuff, it's all there is, the present, the panting present.”

Source: The Tanners

Source: "Some Perplexities about time: with an attempted solution" (1925), p. 149. as cited in: Jonathan Gorman, "The transmission of our understanding of historical time." Historia Social y de la Educación 1.2 (2012): 129-152.

Source: Ghost Story

Misattributed, "What surprises you most about humanity?"

La vraie générosité envers l'avenir consiste à tout donner au présent.
Part 5: Thought at the Meridian (p. 313)
The Rebel (1951)

Monster
Lyrics, My Beautiful Dark Twisted Fantasy (2010)

Gabby Holland, Chapter 5, p. 58
2000s, The Choice (2007)

Source: The Alchemist

Billy writing a letter to a newspaper describing the Tralfamadorians
Slaughterhouse-Five (1969)
Context: The most important thing I learned on Tralfamadore was that when a person dies he only appears to die. He is still very much alive in the past, so it is very silly for people to cry at his funeral. All moments, past, present and future, always have existed, always will exist. The Tralfamadorians can look at all the different moments just that way we can look at a stretch of the Rocky Mountains, for instance. They can see how permanent all the moments are, and they can look at any moment that interests them. It is just an illusion we have here on Earth that one moment follows another one, like beads on a string, and that once a moment is gone it is gone forever.
When a Tralfamadorian sees a corpse, all he thinks is that the dead person is in bad condition in the particular moment, but that the same person is just fine in plenty of other moments. Now, when I myself hear that somebody is dead, I simply shrug and say what the Tralfamadorians say about dead people, which is "So it goes."