I'm not ashamed of it, but I don't go around boasting about it either. (Para. 11)
Meaning: Although I don't feel embarrassed or shame about my job, I don't go around telling people that I'm very proud of it.
be ashamed of: feel embarrassed or shame about
I feel ashamed of myself for making such a silly mistake. 犯了這樣的低級(jí)錯(cuò)誤，我感到慚愧。
People should feel ashamed of polluting their environment. 人們應(yīng)該為污染環(huán)境而感到內(nèi)疚。
boast about (also boast of): speak too proudly of
It's disgusting to hear him boasting about his new car. 聽他吹噓他的新車真讓人惡心。