  Which features of pleasure are most closely related to its value? Bentham claimed that there are at least six ‘dimensions of value in a pleasure or a pain’: intensity, duration, certainty or uncertainty, propinquity or remoteness, fecundity, and purity (Bentham: ch. 4). On one account, fecundity is a matter of being instrumental in other pleasure or pain, purity is a matter of separating pleasure out from non-pleasure, propinquity and remoteness concern temporal and/or spatial nearness or farness, and the essentials of certainty and uncertainty are plain enough. Recalling that non-instrumental value is the present point of focus, Bentham's account suggests the quantitative hedonist idea that the non-instrumental value of pleasure is a matter just of its quantitative features, and that these reduce just to its duration and its intensity.