infidelity quotes

Pour les hommes, l'infide  lite   n'est pas l'inconstance. For men, infidelity is not inconstancy.

- Pierre-Ambroise Choderlos de Laclos
  Les Liaisons dangereuses, letter134.

It is necessary to the happiness of man that he be mentally faithful to himself. Infidelity does not consist in believing, or in disbelieving, it consists in professing to believe what one does not believe.

-Thomas Paine
  TheAge of Reason, pt.1.