With accent marks:
Не ме́сто кра́сит челове́ка, а челове́к ме́сто.
It is not a place that makes a person look good, but a person that makes a place look good.
An opinion about a person is formed by his real actions and spiritual qualities, and not by where and how he lives, what position he occupies.
One can be a mean and evil person in a leading position of a large company, or a poor working guy but always very good to everyone around him. People will always like more the one that makes them feel better, even if that person sweeps streets for living.
Other Russian proverbs
Do not spit in the well - you will need it when thirsty
Trust but verify.
Better to see once than hear a hundred times.
You can't help grief with tears.
A bad example is contagious.
Crowded, but not aggrieved.
Laws are not written for fools.
Better late than never.