The strange case of dr jekyll and mr hyde what suggests a lack of concern for humanity

Yes it does and you know that Dr. Jekyll caused a curse on Mr. Hyde and that the curse really does show a lack of concern for humanity. I hope this helped.

- "he is a very real person and his intent isn't to influence us vonnegut addresses this towards the end of the letter when he says, if we choose to curse, that is by our own individual means."

the answer is subjective. i personally agree with the first answer for this question.

if one isn't strictly talking about objects then the correct answer would be 'my eyes' since according to this riddle i am asleep and in order to answer/open the door i need to open my eyes first of all.

however, if one is specifically looking for an object, then the first thing i would open would be the door

hope this !