If the heart wanders or is distracted, bring it back to the point quite gently... And even if you did nothing during the whole of your hour but bring your heart back, though it went away every time you brought it back, your hour would be very well employed.
~ St. Francis de Sales in INTRODUCTION TO THE DEVOUT LIFE
There comes a pause, for human strength will not endure to dance without cessation; and everyone must reach the point at length of absolute prostration.
~ William Wordsworth in "The Prelude" from THE POETICAL WORKS OF WILLIAM WORDSWORTH