List the known principles of software development.

Here are some well-known principles of software development:

• KISS (Keep It Simple, Stupid) — aim for simplicity in solutions, avoid unnecessary complexity.
• DRY (Don't Repeat Yourself) — do not duplicate code and logic, use reusable components.
• YAGNI (You Aren't Gonna Need It) — do not add functionality until it is truly needed.
• SOLID — a set of principles for object-oriented design:
  • Single Responsibility Principle
  • Open/Closed Principle
  • Liskov Substitution Principle
  • Interface Segregation Principle
  • Dependency Inversion Principle
• Separation of Concerns — divide responsibilities between modules.
• Principle of Least Astonishment — system behavior should be predictable and not surprise users or developers.

These principles help create maintainable, extendable, and understandable code.