These are the contexts of the quotes tweeted between February 13 and February 19, 2014. All but the last are from The Key of the Keplian by Andre Norton and Lyn McConchie.
“I am not ashamed to change, to alter my mind.” Tharna, the Keplian mare, speaking to Eleeri after she has learned to trust the human.
“In an atmosphere of peace and plenty, attitudes could change in a bare generation.” Eleeri’s belief that given love from birth, even a male Keplian could learn trust.
“Nothing was impossible.” Mayrin thinks that somehow Eleeri, coming out of the unknown, might have a clue to the whereabouts of her brother, lost in the unknown.
“It is well said that when evil ones fall out, good may profit.” Eleeri’s initial reaction to the news that the Gray Ones had tried attacking the rasti.
“Better an enemy secure in its own mind.” Romar to Eleeri when she lets him know of her plans to kill more rasti.
“It takes one only to begin a war,” Part of what Eleeri is shown of the valley’s past.
“You can still be you.” Sue Ann Bowling, Homecoming. Flame’s reassurance to Roi, after he has been having nightmares about becoming some of the nastier R’il’noids he has known as a slave.