Original line: "The author acknowledges that humans are imperfect and that our flaws are an inherent part of our nature."
"our" → our
I should go through each word or phrase step by step, replacing with three options wherever possible. Let me make sure not to miss any and maintain the structure. Also, check if words like "collection of" can be substituted with assemblage of. indigno de ser humano libro
"and" → yet