37 ideas
| 6947 | Metaphysics does not rest on facts, but on what we are inclined to believe [Peirce] |
| 12780 | We can grasp the wisdom of God a priori [Leibniz] |
| 6937 | Reason aims to discover the unknown by thinking about the known [Peirce] |
| 7807 | The laws of thought are true, but they are not the axioms of logic [Bolzano, by George/Van Evra] |
| 9618 | Bolzano wanted to reduce all of geometry to arithmetic [Bolzano, by Brown,JR] |
| 9830 | Bolzano began the elimination of intuition, by proving something which seemed obvious [Bolzano, by Dummett] |
| 17265 | Philosophical proofs in mathematics establish truths, and also show their grounds [Bolzano, by Correia/Schnieder] |
| 12774 | Without a substantial chain to link monads, they would just be coordinated dreams [Leibniz] |
| 12777 | Monads do not make a unity unless a substantial chain is added to them [Leibniz] |
| 12782 | Monads control nothing outside of themselves [Leibniz] |
| 21492 | Realism is basic to the scientific method [Peirce] |
| 6949 | If someone doubted reality, they would not actually feel dissatisfaction [Peirce] |
| 12778 | There is active and passive power in the substantial chain and in the essence of a composite [Leibniz] |
| 12783 | Primitive force is what gives a composite its reality [Leibniz] |
| 12775 | Things seem to be unified if we see duration, position, interaction and connection [Leibniz] |
| 12776 | Every substance is alive [Leibniz] |
| 12753 | A substantial bond of powers is needed to unite composites, in addition to monads [Leibniz] |
| 12781 | A composite substance is a mere aggregate if its essence is just its parts [Leibniz] |
| 12779 | There is a reason why not every possible thing exists [Leibniz] |
| 6940 | The feeling of belief shows a habit which will determine our actions [Peirce] |
| 6941 | We are entirely satisfied with a firm belief, even if it is false [Peirce] |
| 6942 | We want true beliefs, but obviously we think our beliefs are true [Peirce] |
| 6943 | A mere question does not stimulate a struggle for belief; there must be a real doubt [Peirce] |
| 9185 | Bolzano wanted to avoid Kantian intuitions, and prove everything that could be proved [Bolzano, by Dummett] |
| 6598 | We need our beliefs to be determined by some external inhuman permanency [Peirce] |
| 6944 | Demonstration does not rest on first principles of reason or sensation, but on freedom from actual doubt [Peirce] |
| 6948 | Doubts should be satisfied by some external permanency upon which thinking has no effect [Peirce] |
| 6945 | Once doubt ceases, there is no point in continuing to argue [Peirce] |
| 12785 | Truth is mutually agreed perception [Leibniz] |
| 22276 | Bolzano saw propositions as objective entities, existing independently of us [Bolzano, by Potter] |
| 17264 | Propositions are abstract structures of concepts, ready for judgement or assertion [Bolzano, by Correia/Schnieder] |
| 12232 | A 'proposition' is the sense of a linguistic expression, and can be true or false [Bolzano] |
| 12233 | The ground of a pure conceptual truth is only in other conceptual truths [Bolzano] |
| 6939 | What is true of one piece of copper is true of another (unlike brass) [Peirce] |
| 6938 | Natural selection might well fill an animal's mind with pleasing thoughts rather than true ones [Peirce] |
| 6946 | If death is annihilation, belief in heaven is a cheap pleasure with no disappointment [Peirce] |
| 12784 | Allow no more miracles than are necessary [Leibniz] |