Might be happiness for some, but it's certainly not freedom, in any normal sense of the word.

Buddhism?

I mean. sounds like buddhism.

To quote the decimal system:

I expect nothing, and I'm still let down.

As someone who is driven to create, this is just not true for me. I am constantly wanting this or that in order to create something magical. Just accepting what is, does not lead to creation. Being creative is freedom for me.

I like ducks 🦆

Freedom from what?

I think there's an important distinction to make with this: contentment vs complacency. They're similar, but distinct. Contentment resonates more with the gratefulness aspect of your statement, whereas "wanting nothing" leans more toward complacency. Contentment is more oriented with a sense of joy or peace, whereas complacency is apathetic and numb. Only one of those sounds like freedom to me.

In addition, I would argue that it's impossible for a human to truly "want nothing" (sorry Buddhist friends). Even the most enlightened soul would desire to see peace throughout the world. In fact, if you truly wanted nothing, I don't think gratefulness would even be possible--what is there to be grateful for if you didn't want any of it in the first place?

Related reading: the Oatmeal on Happiness

I certainly haven't figure out how to be happy without being grateful. And I've noticed comparison seems to serve little purpose other than to undermine gratitude.

Sounds like propaganda from horrible dystopian society.

Although there was a study done on lottery winners to see if they were happier after 6 months. They were not

he who knows when enough is enough will always have enough

So stop all the commercials telling us how much better things can be

Seneca taught us that contented poverty is an honourable estate.