Inter players responded to their new coach with a thumping 3-1 win.
Leonardo said: "My way of viewing football is that it is joy. You cannot experience this sport as a weight on your shoulders. You can win or lose, but always try to improve, to grow and to change. I do not feel the weight of anything in this sport, as I only experience it as emotional moments.
"The only mechanical part of football is tactics, while the rest is passion. We're all hugs now and I'm sure sooner or later someone might tell me to get lost, but that's life. We have to enjoy the moment.
"Now we must focus on the next step that we must win against a tough opponent. Catania will provide a difficult game. The hardest part is maintaining consistency, especially with so many matches this month."