Erin Hunter said this quote

follow your heart! (sppotedleafs motto)

~ Erin Hunter

Now Darkstripe,' Graypaw hissed to Firepaw under his breath, 'is neither young, nor pretty.

~ Erin Hunter

Bluestar blinked. There are cats who would argue that there should never have been a fifth Clan in the forest at all. Why are there four oaks at Fourtrees, if not to stand for the four Clans?Firestar gazed up at the massive oak trees, then back at Bluestar. Fury pure as a lighting flash rushed through his body. Are you mouse-brained? he snarled. Are you telling me SkyClan had to leave because there weren't enough trees?

~ Erin Hunter

You speak from your heart, young Firepaw. This will make you a stronger warrior one day. said LionheartTigerclaw growled. Or it might make him give in to kittypet weakness right at the moment of attack

~ Erin Hunter