When I was admitted into my study abroad program, a family friend said to me "quando si chiuda una porta si apre sempre un portone," roughly translated as "when one door closes, a bigger door always opens." I doubt she remembers telling me this, but it always stuck in my head. As a senior graduating in five weeks, I try to keep this in my head and heart, so I created a nice visual via Polyvore.
It's the Italian counterpart of "when one door closes, another opens," but I think it sounds prettier.
What is your favorite quote? Besides Steve Jobs' "do great work" quote, this is my favorite.