Quote by Quentin Crisp
Vice is its own reward. It is virtue which, if it is to be marketed with consumer appeal, must carry Green Shield stamps.
Summary
This quote suggests that engaging in vices inherently provides its own satisfaction or gratification. On the other hand, virtue, if it is to be appealing to individuals, must come with additional benefits or rewards, like the Green Shield stamps (a form of promotional merchandise given to customers). Essentially, the quote highlights the idea that vices often bring immediate pleasure, while virtues may require external incentives or rewards to make them desirable to people.