Adam Smith. An inquiry into the nature and causes of the wealth of Nations (№ 347136)

As for wastefulness, by spending pushes the pursuit of pleasure, which although is often very strong and hard to overcome, yet generally short and is called accidental causes. On the contrary, to thrift we owe the desire to improve our condition, a desire, usually devoid of passion calm, inherent in us, but from birth and not leaving us to the grave.