^That's really reaching. There are plenty of prior sources that use that translation, such as the title of a P.G. Wodehouse story. When I Google for the phrase, I find nearly 800,000 hits, most of which have nothing to do with B5.
As a rule, if you see two recent works both using the same reference, it is far more likely that they're both drawing on a prior source than that one is referencing the other. Creativity is a branching process, spreading ever more outward. There are so many different creative works in modern times that the odds of any given two having direct, intentional links to one another are small, but they all draw on previous works, so the odds that they share a common link to something earlier are much greater.