Spot the error.Here's an old saying, "great men are rarely good men," but yet many of my favourite heroes from history were exceedingly kind.

Explanation

The phrase "but yet" is redundant and incorrect. The correct sentence would be:"There's an old saying, 'great men are rarely good men,' yet many of my favorite heroes from history were exceedingly kind."Or, alternatively:"There's an old saying, 'great men are rarely good men,' but many of my favorite heroes from history were exceedingly kind."The word "but" and "yet" are both used to indicate contrast, but using them together is unnecessary and can make the sentence sound awkward