I do not consider Hitler to be as bad as he is depicted. He is showing an ability which is amazing and he seems to be gaining his victories without much bloodshed.
Factors in the art of warfare are: First, calculations; second, quantities; third, logistics; fourth, the balance of power; and fifth, the possibility of victory is based on the balance of power.
In warfare, first lay plans which will ensure victory, and then lead your army to battle; if you will not begin with stratagem but rely on brute strength alone, victory will no longer be assured.
Pyrrhus, when his friends congratulated to him his victory over the Romans under Fabricius, but with great slaughter of his own side, said to them, "Yes; but if we have such another victory, we are undone."
There is no failure in life. It all depends how you take things. If you are desiring too much - you want to reach too high, and you cannot - then there is frustration and failure. But if you are not desiring anything and you are perfectly happy wherever you are, life is moment-to-moment victory.