A motto is a slogan or favorite saying, like "When life hands you lemons, make lemonade."
A motto is something you might see on a t-shirt or bumper sticker — a short sentence or phrase that has meaning for that person. Some mottoes have to do with politics, religion, or another belief. Sometimes People write their motto on a large banner or sign so others can see it. President John F. Kennedy's motto was “Ask not what your country can do for you, but what you can do for your country.” Mottoes are similar to proverbs, slogans, and catchphrases.