[You can be anything you want to be -- no limits.] You're supposed to read this cartoon and, being a sophisticated person, say, "Ah! What does this fish know? Nothing is possible in this fishbowl."
En veure aquesta vinyeta, com que sou gent sofisticada, direu: Pobre peix, si es pensa que pot fer el que vulgui. En aquesta peixera, és impossible.