Slogan aka Tagline aka Motto - memorable short phrases description captures the essence of the brand. The slogan/motto generally can be used with logo design on any publication but there is no obligation to use it. The wording must not be modified in any way.
The symbol, logotype and tagline can be used separately or not. The three elements can appear together or in some cases can be manipulated individually but not combined with other symbols, text, or lettering that can affect the generally your brand image.