D?nitz's famous sayings

You must never underestimate your own strength in battle, and never overestimate the actual strength of the enemy. You must fight not only with your mind, but also with a firm will. Observing these things, if you rely solely on mental calculations, it is unreliable. There are many problems that cannot be solved by the addition of one plus one equals two. You don't know what mistakes the enemy over there is making. There will never be a desperate situation, never, because you do not know what luck, chance, your strength, your actions, and the mistakes of your enemies will bring to you. There is never a situation where no improvement can be achieved through hard work.