Translate the following English sentence to French:
"There is absolutely no point in burying one' s head in the sand and always maintaining the opposite of what is in fact the case, on the principle that the more you insist on something, the closer it comes to becoming a reality."
Il ne sert à rien de s' enfouir la tête dans le sable et d' affirmer sans cesse le contraire selon la devise : plus nous continuerons à l' affirmer, plus cela correspondra à la réalité.