"We should remain within the limits imposed by our basic needs and strive with all our power not to exceed them. For once we are carried a little beyond these limits in our desire for the pleasures of life, there is then no criterion by which to check our onward movement, since no bounds can be set to that which exceeds the necessary." --Nilus of Sinai, a fifth-century Christian monk who is venerated in the Eastern Orthodox Church, the Roman Catholic Church, and the Armenian Church. His feast day is November 12.
A paraphrase: "If you lust after stuff, you will never be happy because no matter how much stuff you have, it will never seem like enough." --Paul White, a Christian kvetch who is not venerated by anybody and feasts way too often.