... his progeny are bound to succeed over poor brainy but pug-ugly humanity...
I searched online dictionaries for but I didn't find the meaning fits the sentence. As a result I don't understand the meaning of the sentence.
So could you please explain it to me:
The fuller text is here:
The protagonist of 'The Golden Man' (1953) is sexually irresistible but essentially mindless- and of course his progeny are bound to succeed over poor brainy but pug- ugly humanity: intelligence is no defence against desire.