The egoism which enters into our theories does not affect their sincerity; rather, the more our egoism is satisfied, the more robust is our belief.
If a person loves only one other person and is indifferent to the rest of his fellow men, his love is not love but a symbiotic attachment, or an enlarged egotism.
Egoism belongs to the essence of a noble soul.[Der Egoismus gehört zum Wesen der vornehmen Seele.]