diff --git a/jsonschema-core.xml b/jsonschema-core.xml
index b3ab1da1..beb2be22 100644
--- a/jsonschema-core.xml
+++ b/jsonschema-core.xml
@@ -455,6 +455,68 @@
+
+
+ JSON Schema is built on several principles, which both explain various design
+ choices, and provide guidance on how to extend the specification effectively.
+
+
+
+
+
+ All syntactically legal JSON documents with well-defined behavior are fully
+ supported as instance data. Notably, JSON objects with duplicate property
+ names are syntactically legal but not well-defined.
+
+
+ JSON Schema is defined over a data model, not JSON text. Therefore
+ JSON Schema can be used with any data format that can be reliably parsed
+ into the data model.
+
+
+ Locations in schemas and instances are always identified by URIs,
+ JSON Pointers, or Relative JSON Pointers. JSON Schema treats URIs as
+ identifiers only. Locating and retrieving URI-identified resources
+ is outside of the scope of this specification.
+
+
+ Schema URIs referenced or defined in JSON Schema's Core vocabulary MUST be
+ resolvable without instance data.
+
+
+ Once schema URIs are resolved, the result of applying a schema object
+ to instance data is a function of that schema object and its
+ dynamic-scope subschemas. Parent schemas have no effect on results.
+
+
+ Each keyword's behavior falls into one or more behavioral classifications.
+ A keyword's classification MUST be the same for all values of the keyword.
+
+
+ Keywords produce a boolean assertion result, and an annotation result that
+ can be of any type. Depending on the classification, the assertion result
+ might always be true, or the annotation result might always be empty.
+
+
+ Keyword results MAY be defined in terms of the results of other keywords
+ in the same schema object, as long as no cyclic dependencies are produced.
+
+
+ JSON Schema assertions form a constraint system. The empty schema,
+ {}, allows everything and constrains nothing.
+ Each assertion keyword adds constraints; keywords MUST NOT remove constraints.
+
+
+ JSON Schema annotations provide a flexible way to convey information for
+ an application to use. The information can be used with instance data,
+ or can be used directly from schemas to generate systems for use with
+ conforming instances.
+
+
+
+
+
In accordance with section 3.1 of RFC 6839,