One of my favorite books related to the topics of frugality and simplicity is called "Less is More: The Art of Voluntary Poverty." It is simply an anthology of the most famous quotes and passages on reducing desires and why this is good. I can honestly say it has altered my worldview and led me to movements such as sustainable development and things like permaculture.
I have been finding sustenance in the waste streams of consumer society. For pennies on the dollar, I have furnished my apartment (until I graduate and leave the city) with thrift store or free items. Both of my couches and 2 chairs I found by dumpsters. I made my bookshelf from scrap cuts of sawmill used to enclose a barn. Tablecloths, wicker baskets, solid boxes, milkcrates, etc can all be found near or in dumpsters. Friends and I often go dumpster diving for food (something that r/Frugal tore me apart for suggesting). The fact of the matter is that we find hundreds of dollars worth of food set to expire the next day (almost always nothing wrong with it, those with a hint of concern are left behind) shortly after it is thrown outside by a bakery and produce section. I have eaten better on dumpster food from grocery stores then I would ever be able to afford previously. And to those who this alarms, I have never been sick from food scavenged from dumpsters, I have actually been healthier.
Some have joked with me that I treat older products with more care than newer products, and I guess that is true. I value products of the past that were built to last, cradle to cradle goods. In my fathers garage there are 3 drills, 1 broken new model, one new model on it's way out, and one metal hand crank drill from the past which has never so much as slipped. (although watch that you don't pinch your fingers.) The fact of the matter is there is no shame in frugal, modest values and a rejection of consumer desires. I feel better wearing $5 jeans and having money for books than I would feel in $150 jeans when I stain them or pop the knee open. Just my 2c