Equanimity of the mind is the one thing you should strive for. You should learn to receive gain and loss with the same frame of mind.
Anger should be conquered and the mind should be brought under control.
Devotion to the Lord should be the sole aim of life.
Man should desire only that much which is essential for the maintenance of the body.
Teachings of Rishabha is found in the chapter 4 and chapters 5 and 6 of Skandha V of Srimad Bhagavad Purana