You are proud of your youth. But how long does youth last? Soon you will become an old man. Do not put your faith in your youthful prowess, place your firm faith in God. Realize your self confidence. Self confidence leads to self satisfaction and self-satisfaction leads to self-sacrifice which in turns leads to self-realization.
(From : Sai Veda, The Word of God, sayings of Bhagavan Sri Sathya Sai Baba)