All Righteous Knowledge Comes from Lord Krishna
“Intelligence, knowledge, freedom from doubt and delusion, forgiveness, truthfulness, control of the senses, control of the mind, happiness and distress, birth, death, fear, fearlessness, nonviolence, equanimity, satisfaction, austerity, charity, fame and infamy — all these various qualities of living beings are created by Me alone.” (Lord Krishna, Bhagavad-Gita 10.4-5)
All the above mentioned qualities are created by Lord Krishna and only those who accept Him as God will have a chance to know and then develop these qualities. A devotee is required to read the Bhagavad-Gita everyday. The aim is to constantly be reminded of these qualities so one will eventually realize and follow them. Merely going to Temples but not reading the Bhagavad-Gita will not result in developing these qualities.
Any other scripture which mentions one or more of these qualities and does not give credit to Lord Krishna is basically stealing knowledge from Lord Krishna and giving the credit to someone else. The Bhagavad-Gita was last spoken 5000 years ago and first spoken 155.522 trillion years ago in this universe and thus the origin of all knowledge. Those who are not thieves will give all credit to Lord Krishna for all knowledge.