Translation of hemmungslos

What steered the little fly to the plant? Naturally, we do not know the answer. The human being cannot understand nature because he is part of it, he is inside it. Therefore he cannot judge objectively.
I even put on my Poncho, a plastic rain coat, in order to protect myself from the aircon-breeze. Somehow I managed to fall asleep and woke up at around six in the morning when we approach Palenque.
The American (his name was Jeffrey) meant that this is the hour where usually the price of goods went down as the sellers were under pressure and did not want to return with the product.