Complex sentence: In 1805 he arrived in Paris and he entered at the age eighteen as tutor into the family of M. Stapfer, formerly Swiss minister in France, and he soon began to write in a journal edited by Suard, the "Publiciste".
Split into simpler sentences: In 1805 he arrived in Paris and he entered at the age eighteen as tutor into the family of M. Stapfer, formerly Swiss minister in France. He soon began to write in a journal edited by Suard, the "Publiciste".