Forel was able to combine the "dynamic approach" of French psychiatry with the biological orientation of the German school of psychiatric thought. In 1898 Eugen Bleuler became director of the Burghölzli, where he would remain until 1927. The "Bleuler era" is considered the most illustrious period at the hospital, largely due to the advent of psychoanalysis, usage of Freudian psychiatric theories, and the creative work of Bleuler's assistant, Carl Gustav Jung.