Sage Institute of Education | 471 followers on LinkedIn. At Sage, our philosophy is a simple one – we aim to provide world class tertiary education that will empower our students to succeed, become leaders in their industry, and be the very best practitioners they can be in their chosen field. As a leader in tertiary education, the Sage Institute has an unrivaled reputation for the quality of its teaching. Specialising in accelerated learning techniques, our unique approach is designed to fast-track our students to a successful and rewarding career.