Some think I have lost that poetical ardour and fire 'tis said I once had- the fact is, perhaps I have; but, instead of that, I hope I shall substitute a more thoughtful and quiet power.
What It Means
This is a placeholder explanation generated by the low-overhead model. It interprets "Some think I have lost that poetical ardour and fire 'tis said I once had- the fact is, perhaps I have; but, instead of that, I hope I shall substitute a more thoughtful and quiet power." in the context of "To George Keats (21 September 1819)" to mean that wisdom is timeless.
About John Keats