Regular Script, known as kaishu, represents a monumental achievement in the evolution of Chinese calligraphy, embodying an unparalleled level of formal balance and structural precision. Unlike the more fluid and expressive cursive scripts, kaishu adheres to a rigorous system of rules and guidelines. This structured approach is not a limitation, however, but rather a foundational element that allows for both precision and a subtle form of creative expression within its well-defined boundaries. The essay will begin by detailing the core principles of kaishu, emphasizing the importance of the eight basic strokes known as the "永字八法" (Yong character’s eight principles). Each stroke, from the horizontal line (横) to the hook (钩), requires specific brush handling techniques, including starting position, trajectory, pressure application, speed, and finishing point. Understanding these eight strokes forms the cornerstone of mastery in kaishu.