Complex sentence: He graduated in February 1906 (Juris Doctor) and started a career as a civil servant in Austria's financial administration, leaving after a few months to take a trainee position in a Vienna law firm.
Split into simpler sentences: He graduated in February 1906 (Juris Doctor) and started a career as a civil servant in Austria's financial administration. After a few months, he left to take a trainee position in a Vienna law firm.