I found a few more, even though one is long:

“Death seldom does,” McGarrett says after General Rigney says his son’s death doesn’t make sense. (To Kill Or To Be Killed).

“…words seem so inadequate at a time like this.” McGarrett says this TWICE in the series: Beautiful Screamer and East Wind, Ill Wind.

The long quote: “You think it’s easier to kill a grown man? You think the next one will be easier than this one? God help you if you do.” (pause as he turns to the window) “It better hurt every time. It better tear your guts out every time you pull that gun, whether you use it or not. You learn to live with it, but don’t get used to it.” Seen in ...And They Painted Daisies On His Coffin and The Bomber And Mrs. Moroney.

Also from 'Bomber': “It’s up to Danno now.”

And a really funny one! To Jonathan Kaye in You Don't See Many Pirates These Days, “Let’s not play games. I’m not running a furniture store," after Kaye reads the ship’s manifest.