Trust no one unless you have eaten much salt with him.
"Laelius De Amicitia (Laelius On Friendship)". Book by Marcus Tullius Cicero (Sections 19 and 67), 44 BC.
![Trust no one unless you have eaten much salt with him.](http://cdn.quoteddaily.com/images/marcus-tullius-cicero/trust-no-one-unless-you-have-eaten-much-salt-with-him.jpg)
Trust no one unless you have eaten much salt with him.