If you follow(ed) Maya Angelou's work, you might recall her use of those words in an interview (linked below) where she said, "... try to live your life in a way that you will not regret, years of useless virtue and inertia and timidity."
If this oxymoron conjured an image of a vicious Sisyphean cycle, then you are in good company. One would reckon that the use of these two words in stark juxtaposition must be the point that Maya tries to make. Let's use the resources that we are and have been given to fulfill our [souls'] purpose.
Just Do Right - Dr. Maya Angelou (YouTube)