Life is a succession of lessons enforced by immediate reward, or, oftener, by immediate chastisement.

Life is a succession of lessons enforced by immediate reward, or, oftener, by immediate chastisement.

生活是一连串的教训，通过立即的奖赏而强化，或者更经常的是通过立即的惩罚而强化。

-- Ernest Dimnet 欧内斯特·蒂姆尼特