With accent marks:
Заста́вь дурака́ бо́гу моли́ться – он и лоб расшибёт.
Make a fool pray to God - he will break his forehead.
This proverb is about a stupid person who, being too zealous, only harms the cause.
The proverb originates from the customs of the Orthodox Church. During prayer, believers give obeisances to the earth, trying to touch the floor in the temple by the forehead.
A fool, from excessive diligence, can bow so hard that his forehead will also be smashed against a stone floor.
Other Russian proverbs
Appetite comes with eating.
You see your friends in the times of trouble.
Hurry to much and you will make people laugh.
What goes around comes around.
Start taking care of the dress while it's new, and of your honor while you are young.
Don’t wave your fists after the fight.
Silent means consent.
Fear has big eyes.