diff --git a/docs/examples/modular.rst b/docs/examples/modular.rst
index ebde40592..928d473bc 100644
--- a/docs/examples/modular.rst
+++ b/docs/examples/modular.rst
@@ -4,10 +4,18 @@
 Modular Contracts
 *****************
 
-A modular approach to building your contracts helps you prevent overflow risks
-and unexpected tokens. In the example below, the contract uses the ``move`` method
+A modular approach to building your contracts helps you reduce the complexity
+and improve the readability which will help to identify bugs and vulnerabilities
+during development and code review.
+If you specify and control the behaviour or each module in isolation, the
+interactions you have to consider are only those between the module specifications
+and not every other moving part of the contract.
+In the example below, the contract uses the ``move`` method
 of the ``Balances`` :ref:`library <libraries>` to check that balances sent between
-addresses match what you expect.
+addresses match what you expect. In this way, the ``Balances`` library
+provides an isolated component that properly tracks balances of accounts.
+It is easy to verify that the ``Balances`` library never produces negative balances or overflows
+and the sum of all balances is an invariant across the lifetime of the contract.
 
 ::