Translate the following English sentence to French:
"I believe that it is our responsibility to set the limits, or take on board the risk of setting the limits, of successive approximations without trying to impose any ethical principles - in the case of those who have any - or principles of civilisation."
Il est de notre responsabilité, je crois, de fixer, ou plutôt de prendre le risque de fixer les limites des approximations successives, sans tenter d'ériger nos principes éthiques - pour ceux qui en ont - en principes des civilisation.