天台菩薩戒疏 1.5

1.5

二、明宗用者，先宗，次用。所言宗者，要也，趣也。從始至末，依體護持，趣期圓果，名為宗也。次明用者，身佩聖法，美德外彰，威儀行成，清嚴軌範，肅然可畏，制御三惑，使物歸信，故名為用。

Second, in clarifying the central framework and application: first the central framework, then the application. What is called the "central framework" is the essential, the direction of intent. From beginning to end, guarding and upholding based on the essence, aiming toward the perfect fruit, is named the central framework. Next, in clarifying the application: girding one's body with the noble Dharma, fine virtues become manifest externally; when deportment and practice are perfected, pure and strict norms become awe-inspiring; by restraining the three delusions, one causes beings to take refuge in faith. Hence it is named application.