NA Localization:
"As long as we're alive, we will always experience adversity. But if we confront it with the belief that we can overcome anything by working together...that is the true definition of human wisdom. The new encounters and experiences you and I share will be my greatest achievement. Buon viaggio...happy travels!
Just kidding. But I do have a different way of thinking than the original Leonardo da Vinci, you know?"
Fan Translation:
"As long as you live, you will always have to face hardships.
I think that the spirits to band together and overcome such hardships in a positive way can be called the wisdom of humanity.
The new encounters that I meet with you guys and its brilliance will surely be my greatest accomplishments.
Buon viaggio―――Have a good trip!
Just kidding~, you know my viewpoint is a biiiit different from the original Leonardo da Vinci, don't you?"