Outside of a dog, a book is a man's best friend. Inside of a dog it's too dark to read.

No-one is completely unhappy at the failure of his best friend

Outside of a dog, a book is man's best friend. Inside of a dog, it's too dark to read.

A dog loves unconditionaly and gives without ever taking. He truely is man's best friend.

When a man's best friend is his dog, that dog has a problem.

The things I want to know are in books; my best friend is the man who'll get me a book I ain't read.