Band-Creating a void in the mission statement

The International School of Kuala Lumpur provides an exceptional education that challenges each student to develop (silence)the attitudes, skills, knowledge and understanding to become a highly successful, spirited, socially responsible global citizen. This particular spot creates effective void because we do not know what they want students to develop. Also, before, it said that it challenges students, and this could be an extremely difficult task, or wrong. It also states that it provides an exceptional education, but we do not know what kind of education, it could be, as I said before, something bad.