Wisdom from Prophets

No one who keeps his mind focused entirely upon himself, can grow large, strong and beautiful in character –Prophet Muhammad (PBUH)

Wisdom from Quran

Do they not travel through the earth, and see what was the end of those before them? But the home of the hereafter is best, for those who do right. Will ye not then understand? (12:109)

Wisdom from Imams

You may be in need but remember that if you have need of someone, you still turn yourself into his slave. But if you do away with that need, you will be his equal and if you show benevolence to someone, you will be his master- Imam Ali (AS)