To trust a stranger without investigation invites troubles
so endless that even descendants must endure them.

Without investigation, trust no one. Having investigated,
entrust a man with matters for which he is trustworthy.

To trust a man who has not been tested and to suspect a man
who has proven trustworthy lead alike to endless ills.

-Tirukkural 51: 508-510
Excerpted from the Tirukkural, translated by Satguru Sivaya Subramuniyaswami. Himalayan Academy Publications, www.himalayanacademy.com. Retrieved June 18. 2006 from http://www.beliefnet.com