Nicias perceiving this, and seeing the strength of the enemy and his own difficulties daily increasing, himself also sent to Athens. He had before sent frequent reports of events as they occurred, and felt it especially incumbent upon him to do so now, as he thought that they were in a critical position, and that unless speedily recalled or strongly reinforced from home, they had no hope of safety. He feared, however, that the messengers, either through inability to speak, or through failure of memory, or from a wish to please the multitude, might not report the truth, and so though it best to write a letter, to insure that the Athenians should know his own opinion without its being lost in transmission, and be able to decide upon the real facts of the case. His emissaries, accordingly, departed with the letter and the requisite verbal instructions; and he attended to the affairs of the army, making it his aim now to keep on the defensive and to avoid any unnecessary danger.