They reckoned on their fellow-men as if they possessed the calculable powers of machines, no more, no less; no allowance for human passions getting the better of reason, as in the case of Boucher and the rioters; and believing that the representations of their injuries would have the same effect on strangers far away, as the injuries (fancied or real) had upon themselves. 
They had made no allowance for passions getting the better of reason, as in the case of Boucher and the rioters. 