Code should run as fast as necessary, but no faster; something important is always traded away to increase speed.

A class, in Java, is where we teach objects how to behave.

When debugging, novices insert corrective code; experts remove defective code.

The structure of a software system provides the ecology in which code is born, matures, and dies. A well-designed habitat allows for the successful evolution of all the components needed in a software system.

Code should run as fast as necessary, but no faster; something important is always traded away to increase speed.

Programming languages, like pizzas, come in only too sizes; too big and too small.

When teaching a rapidly changing technology, perspective is more important than content.