1. Justice at Harvard University: A course on morality and political philosophy taught by Professor Michael Thornton is deeply loved by students and the public.

2. Introduction to Artificial Intelligence in Stanford University: The course of introducing the basic knowledge of artificial intelligence taught by Professor Andrew Ng from the Computer Department of Stanford University is easy to understand and suitable for beginners.

3. MIT Linear Algebra: The linear algebra course taught by Professor Keith Devlin from the Department of Mathematics at MIT is clear and suitable for students interested in mathematics.

4. Introduction to Philosophy of Oxford University: The course of introduction to philosophy taught by Professor Jill Blackburn from the Department of Philosophy of Oxford University covers ethics, metaphysics, political philosophy and other fields.

5. Yale University Financial Market: A course on financial market and investment taught by Professor robert shiller of Yale University Economics Department is rich in content and suitable for students interested in the financial field.

6. The Origin of the Universe at Cambridge University: A course on the origin and evolution of the universe taught by Professor Stephen Hawking of the Department of Astronomy at Cambridge University is in-depth and suitable for students interested in astronomy.

The above are some well-known online public courses in universities. These courses are not only rich in content, but also clear in explanation, which is suitable for students of all disciplines. Whether it is the pursuit of knowledge or the cultivation of personal interest, these courses are worth a try.