The phrase "guiding motto" is correct and usable in written English.
You can use this phrase to refer to a motto that has been particularly influential or important in guiding someone's behavior or decision-making. For example, "My family has always held the same guiding motto: 'Make the best of every situation.'".
The guiding motto of our government, Brown quipped, is, "We care about you, but we won't care for you".
By the standards of the day, Seinfeld was dark simply because it wasn't saccharine: one of its directors, Larry Charles, described its guiding motto as "No Hugging, No Learning".
It could be a guiding motto for all of his fiction, but he is talking specifically about a minor character in his new novel, Colorless Tsukuru Tazaki and His Years of Pilgrimage.
He points out that Supercell's guiding motto is, 'Think Small, But Get Big,'.
Remember Potter's guiding motto: "If you're not one up, you're one down".
"Quality over quantity" was his guiding motto.
"The motto guiding lots of people was: 'Let's show them,' recalls a lieutenant who served in the Givati Brigade in Rafah.
By comparison, the Y's Christian-based guiding philosophy -- the motto "We build strong kids, strong families, strong communities" is its answer to the J.C.C.'s "Shalom, you're right where you belong" -- may feel muted to its members.
Jarvis says he will continue to be guided by the motto of the Parachute Regiment, in which he served for 15 years: "Utrinque Paratus" – "Ready for anything".
A country that had been guided by the motto of self-reliance — the government used to exhort us, "be Indian, buy Indian" — joined the world.
But if many of the affected areas on the Indian Ocean coast have physically recovered, guided by the motto "build back better", what has been more difficult to assess has been the complex social, political and personal consequences of the catastrophe.
