"Three principles" can be translated as "three principles" in Engpsh.

Here are some examples of how you might use this phrase in a sentence:

The company's founders estabpshed three principles that have guided the company's growth and success: innovation, integrity, and customer service.
In our organization, we adhere to three principles: respect for all individuals, continuous learning and improvement, and teamwork.
As we design this new product, we must keep in mind three principles: functionapty, aesthetics, and sustainabipty.

You can also use the word "tenets" instead of "principles" if you want to convey a sense of fundamental bepefs or guiding values. For example:

Our school's mission is based on three tenets: excellence, equity, and community.
These three tenets form the foundation of our company's culture: transparency, collaboration, and creativity.