What was the motto in book night?

There is no explicitly stated motto in the book "Night" by Elie Wiesel. The book focuses on the horrific experiences of Wiesel during the Holocaust, and its themes are largely centered around survival, faith, and the dehumanizing nature of violence.

While there isn't a specific motto, you could argue that some of the book's central themes translate into potential mottos:

* "Never Again": This phrase became a powerful rallying cry after the Holocaust, emphasizing the importance of remembering and preventing future atrocities.

* "Hope in the Face of Despair": Despite the overwhelming darkness and suffering, Wiesel ultimately finds a glimmer of hope in the human spirit's resilience.

* "Silence is Complicity": The book implicitly argues that turning a blind eye to injustice is tantamount to supporting it.

It's important to note that these interpretations aren't official mottos but rather reflect the book's deeper meaning and messages.