Why did Imam advise to perform deeds in pure forms for divine sake?

Imam Khomeini: The safeguard Islam itself is the most important obligations.

Sahifeh-ye-Imam, V 21, P 409

God Almighty, grant us the capacity to realize our responsibilities

Imam Khomeini, the late founder of the Islamic Republic advised believers to pray God the Almighty to "Grant us a share of the light of Your knowledge."

Human being miserably fails to grasp the extent of his own small world, Imam Khomeini explained

Imam Khomeini through his theological works explained that human being, a creature crawling on one of the smallest planets miserably fails to grasp the extent of his own small world, whose sun cannot be compared with far greater suns of innumerable galaxies.

Imam Rida (PBUH) in city of Mashhad as a site of knowledge, wisdom

Imam Khomeini: You everyday wake up as your eyes are blessed to be focused on Imam Rida (PBUH)’s ...

Sahifeh ye-Imam, V. 12, P. 106

On the occasion of the martyrdom of Imam Reza

Learning sciences must pave way for refinement of soul and acquisition of virtues

Imam Khomeini advised seminary students that the learning of these sciences in reality is an introduction to the refinement of the soul and the acquisition of virtue