“Begin at once to live, and count each separate day as a separate life.” — Seneca · Letters to Lucilius
“It is not enough to be busy; so are the ants. The question is: what are we busy about?” — Henry David Thoreau · Letter, 1857
“Lose this day loitering, 'twill be the same story tomorrow, and the next more dilatory.” — Johann Wolfgang von Goethe · Faust
“You can't go back and change the beginning, but you can start where you are and change the ending.” — C.S. Lewis