Dante's Inferno - Canto II - The Descent

After the invocation, which poets are used to prefix to their works, he shows that, on a consideration of his own strength, he doubted whether it sufficed for the journey proposed to him, but that, being comforted by Virgil, he at last took courage, and followed him as his guide and master. Dante Alighieri - The Divine Comedy - Inferno - Canto II