Diana Gabaldon. Dragonfly in amber. Book 2. Time of battles (№ 427644)

“I know,” he said quietly. And while you sleep, let me tell you about my love. Because when you wake up, I can't say anything - I'm afraid that all my words will seem empty and stupid to you. But when you fall asleep in my arms, your dreams will tell you that I am telling the truth. Sleep, my love.