Yes, only beneficial positive knowledge are constructive and innovative for our improvements and happiness. There is such a vast pool of collective knowledge inside our brain and we are suppose to be only using those which will bring us benefits, great meanings and not harming ourselves, family, society or nature itself.
That is why one must polish our thoughts and words to create a better world for all of us, aiming to have a healthier and happier environment... The power of choice, the power of words will make or break a person and the world too!
And eventually affecting directly or indirectly all matters in this world... The butterfly effect, remember? One should block out harmful memories that sometimes are allowed to 'grow' inside us without our knowledge.
A good mind will come together with a good heart, thus saving a good soul.. Instill grapes of virtues, practice moral discipline, love, forbearance, patience, loving and forgiving, caring and just be kind to yourself and to all others that too have the image of God...
That won't be too difficult, right?