Complex sentence: Originally intending to become a lawyer, Mark attended the University of California, Berkeley, and financed his education through scholarships, and by working at the Lincoln Fish Market, graduating Phi Beta Kappa in 1937 with a degree in Economics.
Split into simpler sentences: Originally intending to become a lawyer, Mark attended the University of California, Berkeley. He financed his education through scholarships and by working at the Lincoln Fish Market, and graduated Phi Beta Kappa in 1937 with a degree in Economics.