I heard of this a long time ago. so powerfull! Ubuntu: a South African theory of 'humanity towards others', often used in a more philosophical sense as 'the belief in a universal bond of sharing that connects all humanity'.
A librarian reads widely and learns a lot, and because of this, she has the important job of sharing what she knows. But the most important lesson a librarian can teach, in my opinion, is the lesson of valuing oneself.