How to use "despair" in a sentence

Let us not wallow in the valley of despair, I say to you today, my friends

With this faith, we will be able to hew out of the mountain of despair a stone of hope

He became like a homeless dog, wandering the streets in a mood of dark despair

They talked all evening about their dreams, their mistakes, their moments of happiness, their moments of despair

Marius left his grandfathers house in a state of despair, and returning to his room, fell asleep fully-dressed on the bed

But his happiness had no sooner returned than it disappeared again in a cloud of despair

He had to bend as the roof of the tunnel became lower, but when he reached the light, Valjean stopped and gave a cry of despair

While in this state of despair, Valjean felt a hand on his shoulder

That night he went home in despair, and the next evening he did not come at all.

In one of her terrible seizures of grief, in a moment of crazy dark despair, had she come into this room and unknowingly printed those words on Danny's chalkboard?

"Don't despair

"'Laughter is a balm for the afflicted, the best defense against despair, the only medicine for melancholy.'"

Just as she was beginning to despair, the air began to turn cold again

'Andre, don't despair