You have undertaken to cheat me. I won’t sue you, for the law is too slow. I’ll ruin you.

Meaning of the quote

This quote shows that Cornelius Vanderbilt was a very determined and powerful businessman. He was angry because someone tried to trick him, but he didn't want to take them to court since that would take too long. Instead, he said he would destroy them and their business. This shows how Vanderbilt was willing to use his influence and resources to get what he wanted, even if it meant using threats and intimidation rather than going through the legal system.