How do I restore Arial Unicode.ttf to my MacBookPro

I think I deleted it by mistake. Is there an easy way to restore it?

Here you go, I just copied it from my computer (it comes with most versions of OSX), just download this and then double click on it, then click, "Install font." in the corner. If you think you deleted it because you're not seeing it listed in a certain program, then try restarting after installing the font, before checking the program. If it's still not there, the program may require the font to be in a specific place, or may just be restrictive as to which types of fonts it can use. If you do what I said and it's still not showing up in that program, let me know which program it is and I'll look into seeing where it stores font information and other such information which may or may not lead us to a solution for you.

Edit: I can't believe I forgot to hit paste. Boy my face is red.
Here's the link:
http://www.4shared.com/file/257426417/3318fae8/Arial_Unicode.html