41 ideas
8093 | Seek wisdom rather than truth; it is easier [Joubert] |
8095 | We must think with our entire body and soul [Joubert] |
8107 | The love of certainty holds us back in metaphysics [Joubert] |
8099 | The truths of reason instruct, but they do not illuminate [Joubert] |
9023 | If you say that a contradiction is true, you change the meaning of 'not', and so change the subject [Quine] |
8098 | Truth consists of having the same idea about something that God has [Joubert] |
9012 | Talk of 'truth' when sentences are mentioned; it reminds us that reality is the point of sentences [Quine] |
9011 | Truth is redundant for single sentences; we do better to simply speak the sentence [Quine] |
9013 | We can eliminate 'or' from our basic theory, by paraphrasing 'p or q' as 'not(not-p and not-q)' [Quine] |
9020 | My logical grammar has sentences by predication, then negation, conjunction, and existential quantification [Quine] |
9028 | Maybe logical truth reflects reality, but in different ways in different languages [Quine] |
10014 | Quine rejects second-order logic, saying that predicates refer to multiple objects [Quine, by Hodes] |
10828 | Quantifying over predicates is treating them as names of entities [Quine] |
9024 | Excluded middle has three different definitions [Quine] |
10012 | Quantification theory can still be proved complete if we add identity [Quine] |
9016 | Names are not essential, because naming can be turned into predication [Quine] |
9015 | Universal quantification is widespread, but it is definable in terms of existential quantification [Quine] |
9025 | You can't base quantification on substituting names for variables, if the irrationals cannot all be named [Quine] |
9026 | Some quantifications could be false substitutionally and true objectually, because of nameless objects [Quine] |
10705 | Putting a predicate letter in a quantifier is to make it the name of an entity [Quine] |
9027 | A sentence is logically true if all sentences with that grammatical structure are true [Quine] |
9017 | Predicates are not names; predicates are the other parties to predication [Quine] |
9018 | A physical object is the four-dimensional material content of a portion of space-time [Quine] |
9019 | Four-d objects helps predication of what no longer exists, and quantification over items from different times [Quine] |
9014 | Some conditionals can be explained just by negation and conjunction: not(p and not-q) [Quine] |
8101 | To know is to see inside oneself [Joubert] |
8094 | The imagination has made more discoveries than the eye [Joubert] |
8103 | A thought is as real as a cannon ball [Joubert] |
8100 | Where does the bird's idea of a nest come from? [Joubert] |
9009 | Single words are strongly synonymous if their interchange preserves truth [Quine] |
19216 | Propositions (such as 'that dog is barking') only exist if their items exist [Williamson] |
9007 | It makes no sense to say that two sentences express the same proposition [Quine] |
9008 | There is no rule for separating the information from other features of sentences [Quine] |
9010 | We can abandon propositions, and just talk of sentences and equivalence [Quine] |
9021 | A good way of explaining an expression is saying what conditions make its contexts true [Quine] |
8096 | He gives his body up to pleasure, but not his soul [Joubert] |
8104 | What will you think of pleasures when you no longer enjoy them? [Joubert] |
8097 | Virtue is hard if we are scorned; we need support [Joubert] |
8106 | In raising a child we must think of his old age [Joubert] |
8105 | We can't exactly conceive virtue without the idea of God [Joubert] |
8102 | We cannot speak against Christianity without anger, or speak for it without love [Joubert] |