Richelle E. Goodrich said this quote

Despair is not for the living but for those unable to rise and continue; they are the only souls with a right to it. It is an end where breath and strength and will have vanished, leaving no way to persevere. To sink into the abyss that is despair is to suffer an existence far worse than death; therefore, cling to its enemy, our ally—hope. For life goes on, and we must not live in despair. We must not.