Wally Taibleson, Cal State-San Marcos Student, Collects Fourth College Degree At Age 90 (VIDEO)

At age 90, Wally Taibleson became the oldest person to graduate from the California State University system Friday when he collected his fourth degree, KSWB reports.

Taibleson's holds a bachelor's in history, a master's in history, a master's in literature and writing and now a master's in education, all from the Cal State-San Marcos campus.

"Any time you can devote to improving your mind and increasing your learning is valuable for you as well as for those who you're associated with," Taibleson told KSWB.

Taibleson graduated high school in 1939, but he didn't enter college for the first time until he was 70, in 1993, U-T San Diego reports.

According to KGTV, Taibleson lived a pretty full life before he ever took a collegiate course:

Taibleson grew up in Maywood, Ill. After high school, he found an accounting job, married the love of his life, Clare, became a certified public accountant and had four kids. He worked his way up to CFO and vice chairman of the board of National Can Corp. in Chicago. He retired in 1984 and traveled the world.

This will likely be Taibleson's last degree; according to KSWB, he suffers from macular degeneration, which has hurt his eyesight.

"It’s fantastic, inspiring and humbling to call him my father," Taibleson's son Jim told NBC San Diego. "He’s a living, breathing rebuttal to anyone who thinks they can’t go back to school or achieve their goals.”