“One day you will be the one called Master (Naruto). You'll be the one to treat others to ramen. We can't stay kids forever."
- Shikamaru Nara (Naruto)”

Things Behind the Sun
Pink Moon (1972)

ibid
Drenai series, Waylander II: In the Realm of the Wolf
Context: One day you'll find a love, and then we can talk on equal terms. I do not mean that to sound patronizing. You are bright and intelligent. You have courage and wit. But sometimes, it is like trying to describe colors to a blind man. Love, as I hope you will find, has great power. Even death cannot destroy it. And I still love her.

Variant: Hajime," she began, "the sad truth is that some things can't go backwards. Once they start going forward, no matter what you do, they can't go back to the way they were. If one little thing goes awry, then that's how it will stay forever.
Source: South of the Border, West of the Sun

The Neon Rain

Speech to Conservative Central Council ("The Historic Choice") (20 March 1976) http://www.margaretthatcher.org/document/102990
Leader of the Opposition
Context: There are others who warn not only of the threat from without, but of something more insidious, not readily perceived, not always deliberate, something that is happening here at home. What are they pointing to? They are pointing to the steady and remorseless expansion of the Socialist State. Now none of us would claim that the majority of Socialists are inspired by other than humanitarian and well-meaning ideals. At the same time few would, I think, deny today that they have made a monster that they can't control. Increasingly, inexorably, the State the Socialists have created is becoming more random in the economic and social justice it seeks to dispense, more suffocating in its effect on human aspirations and initiative, more politically selective in its defence of the rights of its citizens, more gargantuan in its appetite—and more disastrously incompetent in its performance. Above all, it poses a growing threat, however unintentional, to the freedom of this country, for there is no freedom where the State totally controls the economy. Personal freedom and economic freedom are indivisible. You can't have one without the other. You can't lose one without losing the other.

One Fine Day (1963), Co-written with Gerry Goffin, recorded by The Chiffons
Song lyrics, Singles

Variant: We are one, after all, you and I, together we suffer, together exist and forever will recreate one another.