Knowledge and the transformation of man

Q: Is there freedom in knowledge?

It is our business as human beings to realize the enormous suffering, misery, confusion in the world. Do we realize with all seriousness our responsibility to the whole of mankind?

Do we see the basic factor that we are the world, that the world is not separate from us?

What place has knowledge, experience in changing the quality of a mind that has become violent, petty, selfish, greedy, ambitious?

What are the limits of knowledge? Can the mind be free from the known, not verbally but actually?