Earlier quoted context omitted.
Why is it so strange to be proud of the blessings of good fortune? If you are born beautiful, can't you be proud of it? If you are part of an ancient and rich civilization, can't you be proud of it?
You can respect it and count your blessings but what are you proud for if you didn't contribute anything to it? Now if you are part of an ancient and rich civilization and you continue to further that civilization, that you can be proud of.
Why wouldn't personal beauty, health or intelligence be considered part of that civilization - and if I procreate, I am furthering it :)