Postponing spiritual discipline to old age is wrong decision. Earn the precious reward, while you are young and fresh. It is never too soon to begin. The tongue, the eye, the ear, the hand and mind should all be trained from boyhood upwards to avoid evil. If these are kept clean and sacrosanct, the grace of God is won.
(From : Sai Veda, The Word of God, sayings of Bhagavan Sri Sathya Sai Baba)