Nicklaus himself is considered one of the greatest to ever play golf, helping revolutionize the game along with Arnold Palmer and Gary Player.
Through his post, it was clear that Nicklaus’ feelings towards Brady’s departure are bittersweet. However, Brady has retired while he is healthy; and everyone, including Nicklaus, agree that this is better than being forced to retire (because of an injury or otherwise)
Tom Brady is perhaps the greatest professional athlete in history- I don’t even think it's a debate at this point. He has the rings, and a very long list of accomplishments statistically
Brady’s achievements alone make him the greatest, something which Nicklaus agrees with. “In my opinion, Tom Brady is the best there ever was,” In the end, he wished Brady well for his future. “Congratulations, Tom, on a truly great career!”.