Marry in haste, repent at leisure

Meaning

Literal meaning.

Origin

This proverbial saying was first expressed in print by William Congreve in his comedy of manners The Old Batchelour, 1693:

Thus grief still treads upon the heels of pleasure:
Married in haste, we may repent at leisure.

See also: Who wooed in haste, and means to wed at leisure.