However , he remained intellectually very active in the field of his many interests .
In 1995 Ciechanowiecki suffered a severe stroke , which deprived him of the use of his legs .
Ciechanowiecki remained intellectually very active in the field of Ciechanowiecki 's many interests .
In 1995 Ciechanowiecki suffered a severe stroke , which deprived him of the use of his legs .