Infinity symbol in bookbinding to indicate that a book is printed on acid-free paper and will therefore be long-lasting. In modern mysticism, the infinity symbol has become identified with a variation of the ouroboros, an ancient image of a snake eating its own tail that has also come to symbolize the infinite, and the ouroboros is sometimes drawn in figure-eight form to reflect this identification, rather than in its more traditional circular form. In the works of Vladimir Nabokov, including "The Gift" and "Pale Fire", the figure-eight shape is used symbolically to refer to the Möbius strip and the infinite, for instance
The First Time I Turned Twenty discourage it. Beginning immediately by reminding her that she is a woman and they do not want a woman in their training, they will harass morally to undermine gradually go one evening to plot a sinister Nazi symbol on her scores played during a concert, and what is even worse in her eyes ... they try to humiliate by attacking his instrument. Struggling against the discouragement month after month and use all her intelligence and patience, stimulated by her uncle, she will eventually win the admiration of part of the group of four boys. The First Time I Turned Twenty