Thank you! Yes, that was kind of him.
You know, I started to do the exact same thing, but I realized it would take me years (literally) to pay off the first high-rate loan (which was over $30,000) working at a low-paying government job, so I decided to pay the lowest one first ($4,500) because I listened to the same advice. It was very, very motivating and powerful: I knew that my payments would snowball, but it's another thing to see it actually happening. After that, I picked up the pace dramatically. (And it helped that I was headed into a better-paying job.)
For 99.5% of people, it's better to pay off a small one first, but you're probably the 0.5% who is already as motivated as can be to repay loans anyway.
One thing that helped me with repaying the enormous loans: make a chart of how much interest it costs per day/month/year. Then, see how each payment reduces how much interest you owe per month (and eventually per day). I would tick off minor amounts that I would no longer owe each day, which felt good and kept me focused on those long pay downs.