Programming principles that altered my brain chemistry

Three core programming principles can improve code quality: avoid overusing null by rethinking design and using proper types instead of raw primitives; choose appropriate data structures (like enums and classes) to make algorithms naturally follow and code more maintainable; and prioritize writing clear, readable code for humans over clever one-liners. These principles, inspired by legendary programmers like Tony Hoare and Rob Pike, emphasize simplicity as the key to managing programming complexity.