Rien que d’y penser j’en ai le frisson = The bare thought of it makes me shudder.
Cela donne furieusement à penser = That is very suggestive.
Sans arrière-pensée = Without reserve; With no after-thought.
Perdre
*Un de perdu, deux de retrouvés = When one door shuts, another opens.
Je m’y perds = I am getting bewildered; I cannot make head or tail of it.
Il perd la carte = He is getting confused.
C’est du bien perdu = It is casting pearls before swine.
*Qui perd pèche = He who loses sins; Nothing succeeds like success.