Pain is a pleasure in disguise.

There is a pleasure in not being pleased.

All fits of pleasure are balanced by an equal degree of pain or langour; 'tis like spending this year part of the next year's revenue.

Marred pleasure's best, shadow makes the sun strong.

I conceive that pleasures are to be avoided if greater pains be the consequence, and pains to be coveted that will terminate in greater pleasures.

The heart can ne'er a transport know That never feels a pain.

Ay, in the very temple of Delight Veiled Melancholy has her sovran shrine.

Sweet is pleasure after pain.

The most intolerable pain is produced by prolonging the keenest pleasure.

No pleasure is evil in itself; but the means by which certain pleasures are gained bring pains many times greater than the pleasures.