Ahkaf 26:

•  Gerçekten onlara size vermediğimiz bir çok imkanlar vermiştik. Onları da işitme, görme ve akletme yetileri ile donatmıştık, fakat ne işitme ne görme ne de akletme yetileri başlarından belayı savmaya yeterli olmadı, çünkü onlar Allah(cc)'ın mesajını bile bile inkarda ısrarcı olmuşlardı ve o alay edip durdukları şey onları çepeçevre kuşatıp yok etti.
  (
  An important truth has been stated in this brief sentence. It is only the Revelations of Allah which give the right knowledge and understanding of the truth and reality to man. If man has this understanding and knowledge he sees the right thing with his eyes, hears the right thing with his ears, thinks the right thing with his mind and intellect and takes the right decisions. But when he refuses to believe in the Revelations of Allah, he fails to see the truth in spite of the eyes, becomes deaf to every word of admonition in spite of the ears, and misuses the blessings of the mind and intellect that God has granted him, and goes on drawing wrong conclusions one after the other; so much so that he starts using all his capabilities for his own destruction. ET
  )