You cannot break through a wall with your forehead.
More Russian Proverbs:
A mile walk with a friend has only one hundred steps.Russian
I need not fear my enemies because the most they can do is attack me. I need not fear my friends because the most they can do is betray me. But I have much to fear from people who are indifferent.
Russian
If you will not hear reason, she will surely rap your knuckles.
Russian
The thief makes perhaps one mistake; those he stole from made a hundred.
Russian
In a rickety stable the cow produces no milk.
Russian
They come into the courtroom in a suit and leave with no trousers.
Russian