Often misattributed to Mark Twain but actually from Clarence Darrow, a lawyer I've never heard of: https://www.snopes.com/fact-check/mark-twain-obituary-pleasu....

Clarence Darrow is one of the most famous lawyers in US history, and is widely considered to perhaps be the best attorney in US history as well.

The main way normal people have heard of him was that he was the defense attorney in the Scopes monkey trial.