Life is short and time is swift.
Prov. You should enjoy life as much as possible, because it does not last very long. Jill: Want to go to the movies with me? Jane: Oh, I don't know; I should probably stay at work and finish a few things. Jill: Come on, Jane, life is short and time is swift.
*quick as a wink
and *quick as a flash; *quick as (greased) lightning; *swift as lightningvery quickly. (*Also: as ~.) As quick as a wink, the thief took the lady's purse. I'll finish this work quick as a flash. Quick as greased lightning, the thief stole my wallet.
swift and sure
fast and certain. (As with the flight of a well-aimed arrow.) The response of the governor to the criticism by the opposing party was swift and sure. The boxer's punch was swift and sure and resulted in a quick knockout and a very short match.
*swift as an arrow
and *swift as the wind; *swift as thoughtvery fast. (*Also: as ~.) The new intercity train is swift as an arrow. You won't have to wait for me long; I'll be there, swift as thought.