John Grollier had on all his books inscribed:
"Portio mea, domine, sit in terra viventium;"
and underneath:
"Io. Grollierii et Amicorum."
Henry de Rantzan wrote a decree for his library, of which here is the fulminatory clause:
"Libros partem ne aliquam abstulerit,
Extraxerit, clepserit, rapserit,
Concerpserit, corruperit,
Dolo malo,
Illico maledictus,