Goethe

Lose this day loitering, 'Twill be the same story Tomorrow -- and the next more dilatory. Then indecision brings its own delays, and days are lost lamenting overdays! Are you ernest? Seize this very minute! What you can do, or dream you can - begin it! Courage has genius, power and magic in it. Only engage, and the mind grows heated. Begin it, and the work will be completed.