Re:Use OSX Finder Quicklook (Spacebar) to preview all plain ...
by evilduck on Thursday July 12, 2012 @10:16AM
(#4234582)
You can also access hidden directories from Finder with Cmd-Shift-G and manually typing their path.
Personally, I infrequently access my ~/Library and I know it's there and what it contains and I can hop over to it quickly if needed that I prefer it hidden for visual simplicity.
Just type:
in the Terminal.