Sandi Metz Quotes

The first way design fails is due to lack of it.

Those of us whose work is to write software are incredibly lucky. Building software is a guiltless pleasure because we get to use our creative energy to get things done. We have arranged our lives to have it both ways; we can enjoy the pure act of writing code in sure knowledge that the code we write has use. We produce things that matter. We are modern craftspeople, building structures that make up present-day reality, and no less than bricklayers or bridge builders, we take justifiable pride in our accomplishments.

Every dependency is like a little dot of glue that causes your class to stick to the things it touches.

Agile processes guarantee change and your ability to make these changes depends on your application's design.

Conveying information that a method is stable or unstable is one thing; attempting to control how others use it is quite another.

The general rule for refactoring into a new inheritance hierarchy is to arrange code so that you can promote abstractions rather than demote concretions.

Persist. Practice. Experiment. Imagine. Do your best work, and all else will follow.

Successful (working) but undesigned applications carry the seeds of their own destruction; they are easy to write, but gradually become impossible to change.

The problem is not one of technical knowledge but of organization; you know how to write the code but not

You don't send messages because you have objects, you have objects because you send messages.