It's hard enough to find an error in your code when you're looking for it; it's even harder when you've assumed your code is error-free.

Good code is its own best documentation.

Good code is its own best documentation. As you're about to add a comment, ask yourself, "How can I improve the code so that this comment isn't needed?" Improve the code and then document it to make it even clearer.

It's better to wait for a productive programmer to become available than it is to wait for the first available programmer to become productive.

A typical software project can present more opportunities to learn from mistakes than some people get in a lifetime.

In software, the chain isn't as strong as its weakest link; it's as weak as all the weak links multiplied together.

In my experience, you either have encapsulation and abstraction or you have neither. There is no middle ground.