Tao te Ching: 46

When Tao prevails in the world, galloping horses are turned
back to fertilize (the fields with their dung),
When Tao does not pervail in the world, war horses
thrive in the suburbs.
There is no calamity greater than lavish desires.
There is no greater guilt than discontentment.
And there is no greater diaster than greed.
He who is contented with contentment is always contented.

When man follows Tao, his resources go into cultivation and creation. When he does not, we see the implements of war in our towns and neighborhoods. Would you rather that we used steel and manpower to build a bridge or to see the jeep and machine gun drive down your neighborhood street? I would rather put our resources into something worth and noble and creative than into war.

Besides, horses tear up yards if there are enough of them. All the tromping and stomping eventually destroys the landscaping. Wouldn't that be true of tanks rolling down the street and security checkpoints set up in intersections? The beauty and cultivation are gone for the pragmatism (and some would say paranoia) of security and war.

Practice hsü and vacuity so that you do not want things you do not need. If you want too much, if you're too greedy, you make yourself sick and unhappy. It is your own doing, no one else's. Advertisement and marketing only exposes you to what is out there. It tries to make you want and desire and covet, but ultimately it's up to you.

The Four Noble Truths align perfectly with this chapter: there is suffering in the world, it is caused because you want stuff. You can make the suffering end. Taoism simply says to follow Tao. The entire book gives examples of what following Tao looks like, but Buddhism differs by actually offering the Eight Fold Path, which is a way to accomplish that cessation of want/greed/coveting.

You will always want and need things, but you won't always suffer for not having them. That is the difference between being greedy and not being greedy.