Sayyiduna Shaddad bin Aws (may Allah be pleased with him) narrates from the Messenger of Allah (peace and blessings be upon him) that he (peace and blessings be upon him) said: "The wise and intelligent one is he who guards himself and works for the life after death, and the helpless (weak) one is he who makes his heart follow its desires and then sits pinning his hopes on Allah Almighty."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب صلاة الاستسقاء / 6514