diff --git a/lib/flexor/version.rb b/lib/flexor/version.rb
index 98d90af..9b0affa 100644
--- a/lib/flexor/version.rb
+++ b/lib/flexor/version.rb
@@ -1,3 +1,3 @@
 class Flexor
-  VERSION = "0.1.3".freeze
+  VERSION = "0.1.4".freeze
 end
diff --git a/lib/flexor/vivification.rb b/lib/flexor/vivification.rb
index c18faf5..51ac5d1 100644
--- a/lib/flexor/vivification.rb
+++ b/lib/flexor/vivification.rb
@@ -2,10 +2,6 @@ class Flexor
   ##
   # Methods for recursively converting raw Hashes and Arrays into Flexor objects.
   module Vivification
-    FLOAT = /[0-9.-]+/
-    INTEGER = /^(?<!0)[0-9-]+/
-    DATELIKE = /^[0-9]{4}-[0-9]{2}-[0-9]{2}T[0-9]{2}:[0-9]{2}:[0-9]{2}/
-
     private
 
     def vivify(hash)
@@ -22,13 +18,8 @@ def vivify(hash)
 
     def vivify_value(value)
       case value
-      in Hash then self.class.new(value, root: false)
-      in Array then vivify_array(value)
-      in INTEGER then value.to_i
-      in FLOAT then value.to_f
-      in DATELIKE
-        require "datetime"
-        DateTime.parse(it)
+      when Hash then self.class.new(value, root: false)
+      when Array then vivify_array(value)
       else value
       end
     end
diff --git a/patterns_spec.rb b/patterns_spec.rb
deleted file mode 100644
index 926e1ea..0000000
--- a/patterns_spec.rb
+++ /dev/null
@@ -1,10 +0,0 @@
-require "rspec"
-
-FLOAT = /^(?:(?<!0)(?:[-+] ?)?[0-9])+(?:\.(?:[0-9](?!\.))+)?$/
-RSpec.describe "Patterns" do
-  describe FLOAT do
-    it "does not allow leading zeroes" do
-      skip "not done yet"
-    end
-  end
-end
diff --git a/spec/flexor/flexor_constructor_spec.rb b/spec/flexor/flexor_constructor_spec.rb
index 73df1be..b4f495a 100644
--- a/spec/flexor/flexor_constructor_spec.rb
+++ b/spec/flexor/flexor_constructor_spec.rb
@@ -104,6 +104,48 @@
       end
     end
 
+    context "with string values that resemble numbers or dates" do
+      it "preserves a string of digits as a string" do
+        store = described_class.new({ zip: "10001" })
+        expect(store.zip).to eq "10001"
+      end
+
+      it "preserves a leading-zero string without stripping the zeroes" do
+        store = described_class.new({ zip: "01970" })
+        expect(store.zip).to eq "01970"
+      end
+
+      it "preserves a currency string instead of zeroing it" do
+        store = described_class.new({ price: "$19.99" })
+        expect(store.price).to eq "$19.99"
+      end
+
+      it "preserves a string that merely begins with digits" do
+        store = described_class.new({ address: "123 Main Street" })
+        expect(store.address).to eq "123 Main Street"
+      end
+
+      it "preserves prose that happens to contain a number" do
+        store = described_class.new({ note: "call me at 3pm" })
+        expect(store.note).to eq "call me at 3pm"
+      end
+
+      it "preserves a hyphenated identifier" do
+        store = described_class.new({ phone: "555-1234" })
+        expect(store.phone).to eq "555-1234"
+      end
+
+      it "preserves a decimal-looking string" do
+        store = described_class.new({ version: "1.2.3" })
+        expect(store.version).to eq "1.2.3"
+      end
+
+      it "preserves an ISO-8601 timestamp string" do
+        store = described_class.new({ recorded_at: "2023-01-15T10:30:00" })
+        expect(store.recorded_at).to eq "2023-01-15T10:30:00"
+      end
+    end
+
     context "with a non-hash argument" do
       it "raises ArgumentError for strings" do
         expect { described_class.new("string") }.to raise_error(ArgumentError)
diff --git a/spec/flexor/flexor_writing_spec.rb b/spec/flexor/flexor_writing_spec.rb
index ca997fc..77178c3 100644
--- a/spec/flexor/flexor_writing_spec.rb
+++ b/spec/flexor/flexor_writing_spec.rb
@@ -148,6 +148,20 @@
     end
   end
 
+  describe "assigning a string value that resembles a number" do
+    subject { described_class.new }
+
+    it "preserves the string via the method setter" do
+      subject.address = "123 Main Street"
+      expect(subject.address).to eq "123 Main Street"
+    end
+
+    it "preserves the string via the hash accessor" do
+      subject[:address] = "123 Main Street"
+      expect(subject[:address]).to eq "123 Main Street"
+    end
+  end
+
   describe "#set_raw" do
     subject { described_class.new }