In a wood don’t walk behind another.
More Spanish Proverbs:
She is well married who has neither mother-in-law nor sister-in-law.Spanish
The mare's kicks are caresses to the horse.
Spanish
Rather mulberry than almond. (The almond-tree is in blossom earlier than the mulberry.)
Spanish
One swallow does not make a summer.
Spanish
However early you get up you cannot hasten the dawn.
Spanish
First cobwebs, then chains.
Spanish