With accent marks:
Волко́в боя́ться – в лес не ходи́ть.
Don't go to the woods if afraid of wolves.
If you are afraid of some difficulties that inevitably accompany any venture, you will never achieve anything, this Russian proverb says.
And in fact, if you are afraid of wolves, which may not be found in the nearby forest, you will never pick up berries or mushrooms.
And if you take the risk and start a seemingly difficult venture, it may not be so scary and you can do it.
The closest English equivalent of this proverb is "Nothing ventured, nothing gained".
Other Russian proverbs
Crowded, but not aggrieved.
Another's soul is darkness.
If you like sledding, you should like to carry the sled.
Water wears away a stone.
Live for a century, learn for a century, but die being a fool anyway.
Don't bring your set of rules in a foreign monastery
Start taking care of the dress while it's new, and of your honor while you are young.
One head is good, but two ones are better.