Edmund Burke Quote

I just finished Odd Hours by Dean Koontz.
I've thoroughly enjoyed his Odd Thomas books, but this one doesn't quite hit the mark for me. It wasn't bad, just not as good as the others. A little dry, a little drawn out, a little boring, a little too much talking...

However, I found this quote in the book and really liked it:
The only thing necessary for the triumph of evil is for good men to do nothing.
by Edmund Burke