Here's an important corollary:
Don't shit where you eat.
https://en.wiktionary.org/wiki/don%27t_shit_where_you_eat
That is, avoid getting into romantic relationships with people at work. And for God's sake don't think of work as a cruising ground for members of the appropriate sex(es).
Sure, there's a chance both of you might simultaneously be two of the lucky ones for whom everything always goes perfectly, without any hitches or conflicts. But back in the real world, relationships have problems, and jobs have problems, and when one of those problems inevitably occurs in one domain, it sucks if it dominos over into the other domain.
In the ideal world, we'd all be eternally happy with our personal relationships, and eternally happy with our jobs. But if you suddenly become unhappy with one for some reason, it really sucks if you also lose the other because of it.
And also remember what Freewheelin' Franklin of the Fabulous Furry Freak Brothers said:
"Dope will get you through times of no money better than money will get you through times of no dope."
https://pbs.twimg.com/media/ETBgAc0WoAEEZMF.jpg
https://en.wikipedia.org/wiki/The_Fabulous_Furry_Freak_Broth...