Center for Sustainability at Aquinas College The Center for Sustainability (C4S) at Aquinas College offers educational programs, events and a web-site (www.centerforsustainability.org) that promote practices to restore our environment, foster economic prosperity, and build vibrant communities. Leave a Reply Cancel replyCommentEnter your name or username to comment Enter your email address to comment Enter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.