Amy Poehler

Don't treat your heart like an action figure wrapped in plastic and never used. And don't try to give me that nerd argument that your heart is a 'Batman' with a limited-edition silver bat-erang and therefore if it stays in its original packing it increases in value.

Astonishingly, in spite of decades of research, there is no agreed theory of cancer, no explanation for why, inside almost all healthy cells, there lurks a highly efficient cancer subroutine that can be activated by a variety of agents - radiation, chemicals, inflammation and infection.