When in Rome do as the Romans do.
When love puts in, friendship is gone.
When one is about to act, one must reason first.
When poverty comes in at the door, love flies out at the window.
When riches increase, the body decreases.
When rogues (or thieves) fall out, honest men come by their own.
When sorrows come, they come not single spies, but in battalions.
When the belly is full, the bones would be at rest.
When the belly is full the mind is among the maids.
When the cat's away the mice will play.
When the fight begins within himself a man's worth something,
When the ffish is caught the net is laid aside.
When the fox preaches, take care of your geese.
When the fruit is scarcest, its taste is sweetest.
When the heart is afire, some sparks will fly out at the mouth.
When the heart is full,, the tongue will speak.
When the sun comes in, the doctor goes out.
When the wound is healed, the pain is forgotten.
When three know it, all know it.
When two friends have a common purse, one sings and the other weeps.
When two ride on one horse, one must sit behind.