Official Mission Statement The Stony Brook School is an independent college preparatory school (grades 7-12) that exists to challenge young men and women to know Jesus Christ as Lord, to love others as themselves, and to grow in knowledge and skill in order that they may serve the world through their character and leadership. About Gravitas Gravitas is the online program of The Stony Brook School. Through live, teacher-led courses, Gravitas extends SBS's distinctive approach to rigorous academics and Christian formation to students beyond our campus. Our remote team serves students across time zones and collaborates closely to deliver excellent instruction, timely feedback, and meaning