On the Internet, nobody knows you're a dog
The cartoon by Peter Steiner was originally published in The New Yorker magazine as a comment on online privacy and went on to become one of the most famous illustrations in Internet history.

The cartoon even inspired a play that revolves around individuals who are unable to effectively communicate with people in their lives but find the courage to socialize on the Internet, protected by their anonymity.

On the Internet, nobody knows you’re a dog.