diff --git a/marimo/this.py b/marimo/this.py
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--- /dev/null
+++ b/marimo/this.py
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+print("""The marimo contract
+
+To use marimo means entering into a social contract.
+In this contract you agree
+to define each variable just once,
+to reference variables without cycles,
+to mutate variables sparingly,
+to bind variables to UI elements.
+
+In return marimo assembles from your variables
+something greater than the sum of their cells.
+A reactive notebook,
+a Python program,
+a data app, three turns on the same perspective of
+a dataflow graph.
+
+With this dataflow graph come two simple rules,
+when a cell is run all others that reference its variables run too,
+when a UI element is touched, all cells that reference it run too.
+
+From these two rules marimo is built,
+reactive execution yields reproducible execution,
+interactions flow from you through your code,
+data and models become tangible in a meticulous construction
+that's Python all the way down.
+
+In this construction we hope you will find
+simplicity
+clarity
+immersion
+interactivity
+dualities
+beauty
+joy.""")  # noqa: T201, W293