This left him in a depression for five years,

之后的五年一直陷于抑郁
but at age 25,

但二十五岁时
what helped lift him out of this depression is that he met Harriet Taylor.

他遇到了海利特·泰勒从此摆脱抑郁
She and Mill got married, they lived happily ever after,

他们结了婚从此过上了幸福的生活
and it was under her influence

正是在她的影响下
that John Stuart Mill tried to humanize utilitarianism.

约翰·斯图尔特·穆勒试图把功利主义人性化
What Mill tried to do was to see

穆勒想要做到的
whether the utilitarian calculus could be enlarged and modified

是将功利主义演算放宽和修正
to accommodate humanitarian concerns,

以容纳人道主义关切
like the concern to respect individual rights,

比如对个体权利的尊重
and also to address the distinction between higher and lower pleasures.

以及对高级和低级快乐的区别对待
In 1859, Mill wrote a famous book on liberty,

1859年穆勒写了本关于自由的名著