He spent his youth years in Germany, where he finished the high school in 1918, and attended University of Berlin to study law.

He then served as a teacher of French language in a high school at Adana in 1923 before he worked as a clerk at the Independence Tribunal in the early years of the Republican era.

[2] According to President İsmet İnönü's judgement relating to a conversation between Sarper and Stalin's Minister of Foreign Affairs Molotov on 7 June 1945, Turkey, even remained neutral in the war, might have been under a territorial claim threat from the Soviet Union.

Sarper was appointed the same day Minister of Foreign Affairs replacing Fahri Korutürk in the draft cabinet list.

[1] Revealed U.S. diplomatic documents show that during his term in the İnönü's coalition cabinet, Sarper made assessments to the U.S. Government and told high words about his own head of state like "That Gürsel was not a great brain".