Then indecision brings its own delays,

Then indecision brings its own delays,
And days are lost lamenting over lost days.
Are you in earnest? Seize this very minute;
What you can do, or dream you can do, begin it;
Boldness has genius, power and magic in it.

John Anster (1793-1867)
Faust: A Dramatic Mystery, 1835
(A very free translation of Goethe's Faust)