Stephen King on The Difference Between Men and Boys

"Before drifting away entirely, he [Mark Petrie] found himself reflecting--not for the first time--on the peculiarity of adults. They took laxatives, liquor, or sleeping pills to drive away their terrors so that sleep would come, and their terrors were so tame and domestic: the job, the money, what the teacher will think if I can't get Jennie nicer clothes, does my wife still love me, who are my friends. They were pallid compared to the fears every child lies cheek and jowl with in his dark bed, with no one to confess to in hope of perfect understanding but another child. There is no group therapy or psychiatry or community social services for the child who must cope with the thing under the bed or in the cellar every night, the thing which leers and capers and threatens just beyond the point where vision will reach. The same lonely battle must be fought night after night and the only cure is the eventual ossification of the imaginary faculties, and this is called adulthood.

"In some shorter, simpler mental shorthand, these thoughts passed through his brain. The night before, Matt Burke had faced such a dark thing and had been stricken by a heart seizure brought on by fright; tonight Mark Petrie had faced one, and ten minutes later lay in the lap of sleep, the plastic cross still grasped loosely in his right hand like a child's rattle. Such is the difference between men and boys."

--From 'Salem's Lot (1975)