Burn Notice, Season 6

Madeline:
It was my choice not to leave Frank. And that choice made Michael strong and capable, while it left poor Nate just... How did two brothers turn out so different?

Tom Card:
Imagine that you're holding on to two bottles, and they drop on the floor. What happens? They both break. But it's how they break that's important. Because you see, while one bottle crumples into a pile of glass, the other shatters into a jagged-edged weapon. You see, the exact same environment that forged older brother into a warrior, crushed baby brother. People just don't all break the same, Mrs. Westen. Just don't.