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
Do not spit in the well - you will need it when thirsty
Water does not flow under a lying stone.
A titmouse in hands is better than a crane in the sky.
The demon is not as scary as he is depicted.
Repetition is the mother of learning.
Better to see once than hear a hundred times.
Don't go to the woods if afraid of wolves.
With a darling, even a hut is a paradise.