Mbh 8.37.1b

Beholding those great heroes headed by Bhishma lying on the field of battle, do not feel any anxiety. Seeing even the faultless Bhishma and Drona, equal unto Indra and Vishnu, those crushers of foremost of cars and steeds and elephants, those heroes that were unslayable, slain by the foe, I do not still experience any fear in this battle. Acquainted with mighty weapons, and himself the foremost of Brahmanas, why, indeed, did not the preceptor slay in battle all foes, seeing them destroy the mightiest of our kings with their drivers and elephants and cars? Remembering that Drona in great battle, I tell you truly, listen to me, ye Kurus, there is none amongst you, save myself, that is competent to bear the advancing Arjuna, that warrior who resembles Death himself in his fiercest form. In Drona were the skills attendant on practice, and might, and bravery, and the highest of weapons and policy. When even that high-souled one had to succumb to Death, I regard all the others (of our army), strengthless and on the point of death. In this world I do not find anything, even on reflection, to be stable, in consequence of the inevitable connection of acts. When the preceptor himself is dead, who then will indulge in the certain belief that he will live till even today's sun-rise? When the preceptor was thus slain by the enemy in battle, without doubt weapons, ordinary and celestial, and might and prowess, and achievements and wise policy, are not able to compass the happiness of man. In energy Drona was equal to fire or the Sun, in prowess he resembled Vishnu or Purandara; in policy he was equal to Brihaspati or Usana; irresistible as he was, weapons could not yet protect him. When (our) women and children are weeping and uttering loud wails, when the valour of the Dhartarashtras has been defeated, I know it, O Shalya, that it is I who am to fight. Proceed therefore, against the army of our enemies.