Xenophon,
Anabasis — Book 6, Chapter 5
“ At least, if it were left to me, I would choose that everything should appear smooth and passable to the enemy, which may invite retreat; but for ourselves we may bless the ground which teaches us that except in victory we have no deliverance. It astonishes me that any one should deem this particular gully a whit more terrible than any of the other barriers which we have successfully passed. How impassable was the plain, had we failed to conquer their cavalry! how insurmountable the mountains already traversed by us, with all their peltasts in hot pursuit at our heels! ”
