That the happiness of man may still remain imperfect, as wants in this place are easily supplied, new wants likewise are easily created; every man, in surveying the shops of London, sees numberless instruments and conveniencies, of which, while he did not know them, he never felt the need; and yet, when use has made them familiar, wonders how life could be supported without them. Thus it comes to pass, that our desires always increase with our possessions; the knowledge that something remains yet unenjoyed, impairs our enjoyment of the good before us.

The luster of diamonds is invigorated by the interposition of darker bodies; the lights of a picture are created by the shades; the highest pleasure which nature has indulged to sensitive perception is that of rest after fatigue.

All wonder is the effect of novelty on ignorance.

Sir, sorrow is inherent in humanity. As you cannot judge two and two to be either five, or three, but certainly four, so, when comparing a worse present state with a better which is past, you cannot but feel sorrow. It is not cured by reason, but by the incursion of present objects, which bear out the past.

Man's chief merit consists in resisting the impulses of his nature.

I would consent to have a limb amputated to recover my spirits

Age looks with anger on the temerity of youth, and youth with contempt on the scrupulosity of age.