Authors:

Where art thou, beloved To-morrow? When young and old, and strong and weak, Rich and poor, through joy and sorrow, Thy sweet smiles we ever seek,-- In thy place--ah! well-a-day! We find the thing we fled--To-day!

Samuel Taylor Coleridge, Percy Bysshe Shelley, John Keats (1831). “The poetical works of Coleridge, Shelley, and Keats”, p.477
Where art thou, beloved To-morrow? When young and old, and strong and weak, Rich and poor, through joy and sorrow, Thy sweet smiles we ever seek,-- In thy place--ah! well-a-day! We find the thing we fled--To-day!