Lewis, David

Philosopher American 1941 – 2001

Developed modal realism and possible worlds semantics.

440 quotes

"The semantics of conditionals is contextual and complex."
Science
"Nominalism about abstract objects faces serious challenges."
Philosophy
"Convention governs which objects we recognize as natural kinds."
Knowledge
"Truthmakers must be truthmakers for something specific."
Truth
"The phenomenal character of experience is not functionally definable."
Wisdom
"Counterpart theory provides an elegant solution to some metaphysical puzzles."
Philosophy
"Properties must be distinguished from their instantiations."
Science
"Not all truth requires a truthmaker."
Knowledge
"Identity through time depends partly on convention."
Truth
"The world has a determinate structure independent of our concepts."
Wisdom
"Causation is a fundamental feature of reality, not illusory."
Science
"Modal space is as real as physical space, in some sense."
Imagination
"Convention and objective fact are not incompatible."
Philosophy
"The semantics of tense requires careful attention to indexicals."
Knowledge
"Relations are as fundamental as monadic properties."
Truth
"Consciousness presents a special problem for physicalism."
Wisdom
"Qualia are real but they may still be physical."
Science
"The universe contains multiple possible worlds, all equally real."
Imagination
"Composition does not always occur, despite what we might assume."
Philosophy
"Natural languages do not perfectly carve at the joints."
Knowledge
"Truthmakers explain the grounding relation between truth and being."
Truth
"The problem of causation is a problem of analysis."
Wisdom
"Properties are not mysterious additions to concrete particulars."
Science
"Modal logic is the study of necessity and possibility."
Philosophy
"Convention determines much but not all of our ontology."
Knowledge
"Absences and negations are not always genuine truthmakers."
Truth
"The special sciences describe patterns that supervene on physics."
Wisdom
"Experience is intrinsic to the experiencing subject."
Science
"Possibility is as real as actuality, in the modal realist framework."
Imagination
"Mereological composition is restricted by convention and nature."
Philosophy