Jiraiya and Orochimaru in “Unfinished Business”

Jiraiya

What would I want with the Uchiha kid? Tell me, where's the fun in teaching a boy who's already a genius to begin with?

Orochimaru

How touching. You're drawn to him because he reminds you of your old self, is that it? That brat of yours could never beat Uchiha, born as he was into the Shinobi art of Sharingan. Without Sharingan, poor Naruto hasn't a chance of surpassing him. A shinobi's strength rests upon his ability to obtain and master all the jutsu of this world. The very reason we are called ninja is because of the many ninjutsu arts that we wield.

Jiraiya

You're wrong, that's not what makes a shinobi. You never did get it. A real ninja is one who endures no matter what gets thrown at him.