"When in Rome, do as the Romans do"
When you are visiting another place, you should follow the customs of the people in that place -- dictionary.cambridge.org.
Wisdom
"more trouble than it's worth"
Level where "the effort, difficulty, or problems involved in doing something outweigh the benefits or advantages gained from it. It is used to describe situations where the costs—whether in time, energy, or inconvenience—are too high relative to the value received" -- Brave AI.
"listen to your heart"
Calibration of the saying.
"One is responsible for the effort but not the results"
Request: A useful reminder to release the desire to control the future.
“The pen is mightier than the sword”
The exact phrasing dates to 1839, but "the idea of communication surpassing violence in efficacy had numerous predecessors" -- wikipedia.
"don't make promises you can't keep"
Calibration of this advice.
"happy wife, happy life"
If you're in a good place in your relationship, you may be more compelled to treat your husband amazingly—from telling him how sexy he looks in the morning to giving him a back rub after a long day—thus boosting his quality of life -- womenshealthmag.com.
"out of sight, out of mind"
When something is not nearby, it is forgotten about -- wikitionary.
"One good deed a day"
Request: What if one sets this basic standard?
"You may be disappointed if you fail, but you are doomed if you don’t try"
Attributed to Beverly Sills. By request.
"the whole is greater than the sum of its parts"
The level of realization of this truth.
"we are all sinners"
An acknowledgement of the fundamental moral fallibility in being human. Also calibrated: "we are all sinners blind to our innate innocence."
"There is no elevator to success. You have to take the stairs."
Attributed to motivational speaker Zig Ziglar.
“If you have the choice between being right and being kind, choose being kind”
A quote attributed to Wayne Dyer.
"easy come, easy go"
The phrase can be used consolingly after a loss, implying that since the gain was effortless, the loss isn't a significant matter -- Brave AI.