In experimental philosophy, propositions gathered from phenomena by induction should be considered either exactly or very nearly true notwithstanding any contrary hypotheses,… — Isaac Newton Copy Share Image
The main Business of Natural Philosophy is to argue from Phænomena without feigning Hypotheses, and to deduce Causes from Effects till we… — Isaac Newton Copy Share Image
As in Mathematicks, so in Natural Philosophy, the Investigation of difficult Things by the Method of Analysis, ought ever to precede the… — Isaac Newton Copy Share Image
My Design in this Book is not to explain the Properties of Light by Hypotheses, but to propose and prove them by… — Isaac Newton Copy Share Image
I have not been able to discover the cause of those properties of gravity from phenomena, and I frame no hypotheses; for… — Isaac Newton Copy Share Image
Are not all Hypotheses erroneous, in which Light is supposed to consist in Pression or Motion, propagated through a fluid Medium? For… — Isaac Newton Copy Share Image
The best and safest way of philosophising seems to be, first to enquire diligently into the properties of things, and to establish… — Isaac Newton Copy Share Image
The same law takes place in a system, consisting of many bodies, as in one single body, with regard to their persevering in their… — Isaac Newton Copy Share Image
I have been much amused at ye singular phenomena resulting from bringing of a needle into contact with a piece of amber or resin… — Isaac Newton Copy Share Image
I keep the subject of my inquiry constantly before me, and wait till the first dawning opens gradually, by little and little, into a… — Isaac Newton Copy Share Image
Philosophy is such an impertinently litigious lady that a man had as good be engaged in lawsuits as have to do with her. — Isaac Newton Copy Share Image
Do not Bodies act upon Light at a distance, and by their action bend its Rays; and is not this action (caeteris paribus) [all… — Isaac Newton Copy Share Image
God in the beginning formed matter in solid, massy, hard, impenetrable, movable particles, of such sizes and figures, and with such other properties, and… — Isaac Newton Copy Share Image
I am ashamed to tell you to how many figures I carried these calculations [of Pi], having no other business at the time — Isaac Newton Copy Share Image
Blind metaphysical necessity, which is certainly the same always and every where, could produce no variety of things. All that diversity of natural things… — Isaac Newton Copy Share Image
You sometimes speak of gravity as essential and inherent to matter. Pray do not ascribe that notion to me, for the cause of gravity… — Isaac Newton Copy Share Image
