Come now, have courage to be wise: begin: You're halfway over when you once plunge in: He who puts off the time for mending, stands A Clodpoll by the stream with folded hands, Waiting till all the water be gone past; But it runs on, and will, while time shall last.
"The Satires, Epistles, and Art of Poetry"
Horace a.k.a. Quintus Horatius Flaccus Translated by John Conington, M. A.