Let your boat be on the water, but, do not allow the water to enter the boat. Be in the world, but, not of it. That is the secret of a successful life. Control, curb your tendency to wish for this and that. Tell the Lord, “You are enough for me. I don’t wish for any thing else.” Wish for his will to prevail, not your wish to succeed.
(From : Sai Veda, The Word of God, sayings of Bhagavan Sri Sathya Sai Baba)