He contended that welfare consists in the experiencing of pleasurable mental states, suggesting, in contrast to Bentham, that the quality, not simply the amount, of a pleasure is what matters.

• 他承认幸福是由愉悦的精神状态的经验组成的，和边沁相反，他主张至关重要的是快乐的性质而不仅仅是数量。