00 Although humanity becomes accustomed to extremes of wind, cold, sickness, and even hunger, 11b10 it 12b10 still has 11b10 its 12b10 breaking-point. 12blockquote12br
0 Grammaticaly speaking, 'it' refers to 'humanity'. 02br 00I think 'it' could, in this case, also refer to people or mankind. Basically the same.
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