(WBBM) Former Bulls star Bill Cartwright is giving back.

The three-time NBA champion will give the commencement address Friday morning at Prologue Early College High School, which is a community-based high school and GED program.

Founded in 1972, Prologue gives a second chance to 500 students every year.

Cartwright, who spent 15 seasons in the NBA, joined WBBM Newsradio’s Josh Liss to discuss what he plans to tell the graduating students.

“You’re not bounded by anything,” Cartwright said. “You’re not bounded by thought. You’re only bounded by what you believe that you are. … You can only really hit what you aim at.”