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21 " The unsolved problems of the physical world now seem even more formidable than those solved in the twentieth century. Though in application it works splendidly, we do not even understand the physical meaning of quantum mechanics, much less how it might be united with general relativity.We don't know why the dimensionless constants (ratios of masses of elementary particles, ratios of strength of gravitational to electric forces, fine structure constant, etc.) have the values they do, unless we appeal to the implausible anthropic principle, which seems like a regression to Aristotelian teleology. "
― , Physics, the Human Adventure: From Copernicus to Einstein and Beyond
22 " Mathematical knowledge is unlike any other knowledge. While our perception of the physical world can always be distorted, our perception of mathematical truths can’t be. They are objective, persistent, necessary truths. A mathematical formula or theorem means the same thing to anyone anywhere – no matter what gender, religion, or skin color; it will mean the same thing to anyone a thousand years from now. And what’s also amazing is that we own all of them. No one can patent a mathematical formula, it’s ours to share. There is nothing in this world that is so deep and exquisite and yet so readily available to all. That such a reservoir of knowledge really exists is nearly unbelievable. It’s too precious to be given away to the “initiated few.” It belongs to all of us. "
― Edward Frenkel , Love and Math: The Heart of Hidden Reality
23 " Just as it is by His goodness that God gives being to beings, so also it is by His goodness that He makes causes to be causes, thus delegating to them a certain participation in His actuality. Or rather, since causality flows from actuality, let us say that He confers the one in conferring the other, so that to the Christian mind the physical world in which we live offers a face which is the reverse of its physicism itself, a face where all that was read on the one side in terms of force, energy and law, is now read, on the other in terms of participations and analogies of the Divine Being. The Christian world takes on the character of a sacred world with a relation to God inscribed in its very being and every law that rules its functioning. "
― Étienne Gilson
24 " There is a correlation between the physical and spiritual worlds but only attachment to the physical world causes emotional suffering. "
25 " This is what grace does. It rescues us from our spiritual blindness. It releases us from our bondage to our rationalism and materialism. Grace gives us the faith to be utterly assured of what we cannot see. It frees us from refusing to believe in anything we cannot experience with our physical senses. But grace does more. It connects us to the invisible One in an eternal love relationship that fills us with joy we have never known before and gives us rest of heart that we would have though impossible. And that grace is still rescuing us, because we still tend to forget what is important, real, and true. We still tend to look to the physical world for our comfort. We still fail to remember in given moments that we really do have a heavenly Father. Grace has done a wonderful thing for us and continues to do more and more. "
― Paul David Tripp , New Morning Mercies: A Daily Gospel Devotional
26 " The mortal enemies of man are not his fellows of another continent or race; they are the aspects of the physical world which limit or challenge his control, the disease germs that attack him and his domesticated plants and animals, and the insects that carry many of these germs as well as working notable direct injury. This is not the age of man, however great his superiority in size and intelligence; it is literally the age of insects. "
― ,
27 " The moral world is as little exempt as the physical world from the law of ceaseless change of perpetual flux. "
28 " In Gnosticism, the physical world did not ultimately matter - which meant physical suffering did not matter either. Seeking 'enlightenment' meant cultivating an attitude of detachment, even indifference. "
29 " Dreams look real, but they're in your mind, so you realize that the physical world is also a construction, which shows that the mind can affect reality in more ways than you can imagine. "
30 " We're moving into an era when things are dematerialised and much more holographic. Floating above the physical world and the geographic map, there's another landscape that's constantly changing - something like a cloud - of communication, information, exchange and commerce. "
31 " All things which have a directing force here in the physical world cease to exist when one arrives in the imaginative world. If, on the physical plane, you imagine yourself to have done something you actually have not done, you will soon be persuaded by the facts of the physical world that this is not so. This is not the case in astral space. "
32 " The moral world is as little exempt as the physical world from the law of ceaseless change, of perpetual flux. "