FULL EXTRACT
"Ah, Mr. Roberts, I trust you are not one of those business men, who make a business of never having to do with unfortunates. For God's sake don't leave me. I have something on my heart--on my heart. Under deplorable circumstances thrown among strangers, utter strangers. I want a friend in whom I may confide. Yours, Mr. Roberts, is almost the first known face I've seen for many weeks."
"It was so sudden an outburst; the interview offered such a contrast to the scene around, that the merchant, though not used to be very indiscreet, yet, being not entirely inhumane, remained not entirely unmoved."
--
Did I understand well?
It was so sudden an outburst; the interview offered such a contrast to the scene around, that the merchant, though not used to be very indiscreet[=used to be little indiscreet], yet, being not entirely inhumane[=being a little humane], remained not entirely unmoved.
Can we also say: "(...) though not used to be very indiscreet and being not entirely inhumane(...)"
and "(...) though not used to be very indiscreet, yet being not entirely inhumane(...)"??
Well, I don't think we can say the former though, it seems the second proposition is contradicting the first statement.