All of us who are worth anything, spend our manhood in unlearning the follies, or expiating the mistakes of our youth.
Percy Bysshe ShelleyThere is a harmony in autumn, and a luster in its sky, which through the summer is not heard or seen, as if it could not be, as if it had not been!
Percy Bysshe ShelleyMan's yesterday may never be like his morrow; Nought may endure but Mutability.
Percy Bysshe Shelley