With accent marks:
Доверя́й, но проверя́й.
Trust but verify.
This proverb is becoming more and more relevant nowadays.
It is good to have trust in people, but you need to know for sure who can be trusted and who can not.
Other Russian proverbs
Each sandpiper praises its swamp.
Some to the forest, some for firewood.
Water does not flow under a lying stone.
Do not dig a hole for another one, you will fall into it yourself.
With whom you are friends with, from them you will learn.
Repetition is the mother of learning.
Without labor, you can not even catch a fish in the pond.
You can't command to the heart.