People never grasp the fact that they're going to have to go through the same thing again. They get to the sort of five-year stretch or the seven-year itch or whatever these tension points are that seem to be organic, built in, like the tide coming in and going out. It's like every time the tide goes out you quit--you move your house or something.
The Playboy interviews with John Lennon and Yōko Ono (ed. Putnam Pub Group, 1981)