The Liskov Substitution Principle is a fundamental concept in object-oriented programming, stating that objects of a superclass should be replaceable with objects of a subclass without affecting the correctness of the program.

The best way to succeed is to fail often.

设计中最难的部分是保持功能的简洁。

Resilience is built through adversity, not in spite of it.

文化比战略更重要。