Orwell's "universal deceit" quote

I see this quote frequently:

In an age of universal deceit, telling the truth is a revolutionary act.

it is attributed to George Orwell, but I have never been able to find the source.
does anyone know the source of this quote?

It may not be Orwell.
The link below brings you to a searchable database of all of Orwell's works.
Searching with "universal" or "deceit" does not bring up your quote.

I'm not so sure that searchable database contains all of Orwell's works. For example I entered the word "Joey" but was told my search returned no results. (I tried "Joey" because it's a word Orwell used in Keep the Aspidistra Flying and which I wanted to know more about, so I posted a question on this forum. It was one of my first postings here, about two years ago.)