Authors:

sometimes it's okay to cheat on things - but don't ever cheat on people. because once you start, it's very hard to stop. you find out how easy it is to do.

John Green, David Levithan (2010). “Will Grayson, Will Grayson”, p.165, Penguin
sometimes it's okay to cheat on things - but don't ever cheat on people. because once you start, it's very hard to stop. you find out how easy it is to do.