Former Tennessee Senator Bob Corker spoke at UTC's commencement on Saturday, delivering words of hope for graduates.

Corker retired four months ago after serving 12 years in the US Senate.

He says after stepping down, he wants to do what he can to be a productive citizen.

“You know, I want to be productive. I want this next chapter to be the very best. But it doesn't necessarily mean being in the public arena,” Corker said.

He has managed to stay busy during his time off.

In the last month, he has been across the country speaking at Harvard, UT Knoxville and Sewanee.

He was named by Time magazine as one of the 100 most influential people in the world.

And after this weekend, he says he has no idea what's next for him.

"I'm going to get real serious about what the next steps are. But, I truly don't know, I wish I could tell ya,” Corker said.

The biggest message he wants graduates to take away from him is to be great public servants and try to make the community better than before.

"To give back. Give back to others. It leads a life of wholeness and meaning, and I hope that all of them will do that,” Corker said.

And at the end of the day, Corker may not have a certain path ahead, but sees a bright future for everyone graduating and the country as a whole.

"But after being around people like you and others across our country, I really believe that the best is yet to come,” Corker said.

Corker wraps up his speaking tour on Tuesday.