Certainly we do not need quantum mechanics for macroscopic objects, which are well described by classical physics - this is the reason why quantum mechanics seems so foreign to our everyday existence.
It is a mystery that is hidden from me by reason that the emergency requiring the fathoming of it hath not in my life-days occurred, and so, not having no need to know this thing, I abide barren of the knowledge.
I'm obsessed with the form of a toolbox. The idea of a portable kit that has everything you might need ignites something inside me. It's like Batman's utility belt.
Of this I am certain, that no one has ever died who was not destined to die some time. Now the end of life puts the longest life on a par with the shortest... And of what consequence is it what kind of death puts an end to life, since he who has died once is not forced to go through the same ordeal a second time? They, then, who are destined to die, need not be careful to inquire what death they are to die, but into what place death will usher them.
The outcome of this culture of discrimination is that young people are routinely denied the roles in society they can, should, and need to be occupying.
The sum total or Ishwara may be said to be All-good, Almighty, and Omniscient. These are obvious qualities, and need no argument to prove, from the very fact of totality.
We need to find secular ways to cultivate warm-heartedness. We need secular ways to educate ourselves about inner values. The source of a happy life is within us. Trouble makers in many parts of the world are often quite well educated, so it is not just education that we need. We need to pay attention to inner values.