Thank you for the translation! Personally I like the idioms authors tweak.
I suppose if we didn't have prideful failure to communicate this story would've shifted to more politics than romance. Despite distrust, the couple did lay out their worldviews, and half their intentions. So... Good.
I'm curious about the sentencing. Jiang Shu can attend and see the crimes, but as she isn't going to be executed, keeping the Gu on a leash seems fine at a glance... Though since that looks like faction building, with criminals, presumably someday irredentist rebels, I see she doesn't want Qi Changning's wrath. That lack of trust seems like it'll get Gu elders killed this timeline...
"A ruler must be unpredictable to command the respect of the masses."
This is actually completely wrong. She should read some Machiavelli. Machiavelli wrote that it is better to be feared than loved, but he further clarified that one should never be hated. If you're feared but predictable, that's good, because then others will know that if they displease you they'll be destroyed and if they please you they'll be rewarded, and so they'll be obedient. But if you're feared and unpredictable, everyone will know that even if they behave as you want them to they are still in danger and they will have no reason not to rebel. You will be hated and destroyed.
A (the most?) major inspiration for this Empress only steered power for a few years. Different strats than IRL surely, but force is precarious without a stable power base... At least the Empress has Court officials on her side without brutality thus far; she's doing better than what Grad Student Empress knows of.