A Quote by Isaac Newton

Our design, not respecting arts, but philosophy, and our subject, not manual, but natural powers, we consider chiefly those things which relate to gravity, levity, elastic force, the resistance of fluids, and the like forces, whether attractive or impulsive; and therefore we offer this work as mathematical principles of philosophy; for all the difficulty of philosophy seems to consist in this from the phenomena of motions to investigate the forces of nature, and then from these forces to demonstrate the other phenomena.
Our present work sets forth mathematical principles of philosophy. For the basic problem of philosophy seems to be to discover the forces of nature from the phenomena of motions and then to demonstrate the other phenomena from these forces. It is to these ends that the general propositions in books 1 and 2 are directed, while in book 3 our explanation of the system of the world illustrates these propositions.
I have presented principles of philosophy that are not, however, philosophical but strictly mathematical-that is, those on which the study of philosophy can be based. These principles are the laws and conditions of motions and of forces, which especially relate to philosophy.
Atheism is based upon a materialist philosophy, which holds that nothing exists but natural phenomena. There are no supernatural forces or entities, nor can there be any. Nature simply exists.
Natural Magick is taken to be nothing else, but the chief power of all the natural Sciences; which therefore they call the top and perfection of Natural Philosophy, and which is indeed the active part of the same; which by the assistance of natural forces and faculties, through their mutual & opportune application, performs those things that are above Human Reason.
I have not been able to discover the cause of those properties of gravity from phenomena, and I frame no hypotheses; for whatever is not deduced from the phenomena is to be called a hypothesis, and hypotheses, whether metaphysical or physical, whether of occult qualities or mechanical, have no place in experimental philosophy.
Philosophy isn't programmed into us, and a lot of the forces of our culture steadfastly work against it. Philosophy, for me, is a way of resisting the nihilism of the present by making, creating, affirming. By going on.
Self-taught poverty is a help toward philosophy, for the things which philosophy attempts to teach by reasoning, poverty forces us to practice.
We are so far from knowing all the forces of nature and their various modes of action that it would be unworthy of the philosopher to deny phenomena simply because they are inexplicable at the present state of our knowledge. The more difficult it is to acknowledge their existence, the greater the care with which we must study these phenomena.
It will be found that everything depends on the composition of the forces with which the particles of matter act upon one another; and from these forces, as a matter of fact, all phenomena of Nature take their origin.
Just as the system of the sun, planets and comets is put in motion by the forces of gravity, and its parts persist in their motions, so the smaller systems of bodies also seem to be set in motion by other forces and their particles to be variously moved in relation to each other and, especially, by the electric force.
The whole analogy of natural operations furnishes so complete and crushing an argument against the intervention of any but what are termed secondary causes, in the production of all the phenomena of the universe; that, in view of the intimate relations between Man and the rest of the living world; and between the forces exerted by the latter and all other forces, I can see no excuse for doubting that all are co-ordinated terms of Nature's great progression, from the formless to the formed from the inorganic to the organic from blind force to conscious intellect and will.
In Philosophy, the contemplations of man do either penetrate unto God, or are circumferred to Nature, or are reflected and reverted upon himself. Out of which several inquiries there do arise three knowledges, Divine Philosophy, Natural Philosophy, and Human Philosophy or Humanity. For all things are marked and stamped with this triple character of the power of God, the difference of Nature and the use of Man.
I think the Bhagavad Gita is about both the forces of light and the forces of darkness that exist within our own self, within our own soul; that our deepest nature is one of ambiguity. We have evolutionary forces there - forces of creativity, and love, and compassion, and understanding. But we also have darkness inside us - the diabolical forces of separation, fear and delusion. And in most of our lives, there is a battle going on within ourselves.
I would say to anybody who thinks that all the problems in philosophy can be translated into empirically verifiable answers - whether it be a Lawrence Krauss thinking that physics is rendering philosophy obsolete or a Sam Harris thinking that neuroscience is rendering moral philosophy obsolete - that it takes an awful lot of philosophy - philosophy of science in the first case, moral philosophy in the second - even to demonstrate the relevance of these empirical sciences.
When one begins to reflect on philosophy—then philosophy seems to us to be everything, like God, and love. It is a mystical, highly potent, penetrating idea—which ceaselessly drives us inward in all directions. The decision to do philosophy—to seek philosophy is the act of self-liberation—the thrust toward ourselves.
Superstring theories provide a framework in which the force of gravity may be united with the other three forces in nature: the weak, electromagnetic and strong forces. Recent progress has shown that the most promising superstring theories follow from a single theory. For the last generation, physicists have studied five string theories and one close cousin. Recently it has become clear that these five or six theories are different limiting cases of one theory which, though still scarcely understood, is the candidate for superunification of the forces of nature.
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