Translation of beachtenswert

He also told me that he had build his scooter by himself. I could not understand how a doctor was able to build such a machine on his own. It seems that the circumstances made people capable of many things.
In my opinion, this is another thing, it is rooted in history. People of different countries will always point to their neighbor's mistakes, a vicious cirlce arises which is very hard to avoid.
To be honest, we did not understand one word of what he was saying, because his English was so terrible. Or maybe it wasn't and it was only his accent which we could not grasp. To us it was Chinese.