Dr. Samuel Johnson said:
"The habit of looking on the bright side in every circumstance is more valuable than having a large income."
(See they n0t that they are tried once or twice every year [with different kinds of calamities, disease, famine, etc.]? Yet, they turn not in repentance, nor do they learn a lesson (from it))
(Quran 9: 126)
One of our pious predecessors said to someone:
"Verily, I see upon you the signs of blessings, and my advice to you is to lock your blessings up and keep them safe by being thankful."
And [remember] when your Lord proclaimed: “If you give thanks [by accepting Faith and worshipping none but Allah], I will give you more [of My Blessings], but you are thankless [i.e. disbelievers], verily! My Punishment is indeed severe.) (Quran I4: 7)
(And Allah puts forward the example of a township [Makkah], that dwelt secure and well content; its provision coming to it in abundance from every place, but it [its people] denied the Favors of Allah [with ungratefulness]. So Allah made it taste the extreme of hunger (famine] and fear because of that [evil, i.e. denying Prophet Muhammad] which they [its people] used to do.) (Qur’an 16: 112)