What to Do

I think the issue with saying “make good new things” is that things themselves aren’t inherently good or bad—they’re just things. It’s the person who makes them that can be good or bad.

I have a saying (among others from my dad) that captures a similar idea: “Make things, and be good.”

a dish from made bad food is bad food. a program that deletes your important data is a bad program.

so no: things relate to each other and in this relation, they can be objectively bad (bad to the object subjected to its effects). Things don't exist without the effects their existence exerts. Rephrased: the question of their goodness is, commonly, a question of fitness.