They would have survived if they had been more ratical
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This food tastes like heaven!
In terms of the first question, "They" would be an objective pronoun, but it should be noted that this does not have to be so. for the second, the answer is "my".
Well when I read it I thought his attitude would be accepting and admiring of the past but although he reads books about Shakespeare and such he disagrees with the concept of passion. He stated that the people now are better off without passion. I would say his attitude is understanding and interested in the past