Success didn't spoil me, I've always been insufferable. Fran Lebowitz
No egoism is so insufferable as that of the Christian with regard to his soul. W. Somerset Maugham
No one is more insufferable than he who lacks basic courtesy. Bryant H. McGill
I was a modest, good-humoured boy. It is Oxford that has made me insufferable. Max Beerbohm
The insufferable arrogance of human beings to think that Nature was made solely for their benefit, as if it was conceivable that the sun had been set afire merely to ripen men's apples and head their cabbages. Cyrano de Bergerac