Design components that are self-contained, independent, and have a single, well-defined purpose. ~ Tip #17 from the book "The Pragmatic Programmer"

Lines like walls, isolate the fray,
Code islands, where logic holds sway.
No tangled vines, no whispers astray,
Each function a fortress, standing tall, they say.

One purpose blooms, a clear and sharp knife,
No meddling neighbors, disrupting the life.
Changes confined, like secrets in a vault,
No dominoes falling, projects left to default.

Independent spirits, modules alight,
Shining like stars, in the digital night.
Self-contained whispers, a developer's glee,
No butterfly effects, just clarity.

So build your walls, let logic take flight,
Unrelated shadows, banished from sight.
For code that's serene, a developer's dream,
Islands of purpose, bathed in logic's stream.