Show more usage examples... You need to know what the wholesale price of any materials are so that you can figure out how much to charge for your product.
Fundamental norms, rules, or values that represent what is desirable and positive for a person, group, organization, or community, and help it in determining the rightfulness or wrongfulness of its actions. Principles are more basic than policy and objectives, and are meant to govern both. See also principle.
Therefore, principles are probably the most important kind of content for us to include in the majority of our instruction. And it is usually helpful to learn how to apply the principles to new situations. Given the importance of principle using, it is essential that we know how to teach it well.