Big words from a mere boy who doesn't know what it is to face a real opponent. If you knew you'd of never opened your mouth. [But if Gai was just looking to ruffle his feathers, he certainly succeeded.]

Don't talk to me about battle. Why don't you put your money where your mouth is one day, fighting with that soft heart of yours. Then we'll see who truly knows how to handle even the fiercest enemies. [The only person he trusts to do that is Goku, and Gai does not look like Goku to him.]