But I believe in love, you know; love is a uniquely portable magic. I don’t think it’s in the stars, but I <i>do</i> believe that blood calls to bloo… - Stephen King

William "Stuttering Bill" Denbrough recites this in IT (1985), but the line is not originally King's, as is often believed. It is part of a tongue-twister that dates at least to its publication in "Exercises in Articulation" in The Dayspring (March 1874), p. 39:

The past is obdurate.

The most important things are the hardest things to say. They are the things you get ashamed of, because words diminish them - words shrink things that seemed limitless when they were in your head to no more than living size when they're brought out. But it's more than that, isn't it? The most important things lie too close to wherever your secret heart is buried, like landmarks to a treasure your enemies would love to steal away. And you may make revelations that cost you dearly only to have people look at you in a funny way, not understanding what you've said at all, or why you thought it was so important that you almost cried while you were saying it. That's the worst, I think. When the secret stays locked within not for want of a teller, but for want of an understanding ear.