Quote:1 Enrolling in a wide variety of courses in different disciplines is important;
2 it could furnish the students with a broad background of knowledge and skills;
3 it gives the students an open mind with diverse ways of thinking;
4, both the broad background and the open mind are essential for the students in their future careers.
How about: "Enrolling in a wide variety of courses in different disciplines is important. Students with a broad background of knowledge and skills develop an open mind, with diverse ways of thinking. These characteristics are essential for the students as they move into their chosen careers."
You did a good thing to break it into individual thoughts. Keeping it that way might make for choppy writing, but combining some sentences and leaving others fairly short can make a good, balanced statement that's easy to read and understand.