The core

In the last post I reference the core of liberty. Here is a real core:

As it turns out, when we eat apples we are eating the sexual reproductive organ of a plant. Most fruits and nuts are ovaries. In the case of an apple, the part we eat is the swollen hypanthium that surrounds the core, which is the ovary. Interestingly many nut species, like Brazil nuts and walnuts are simply hardened ovaries. Some fruits are more complex. Pineapples consist of many ovaries fused together from adjacent flowers. 

All flowers have ovaries, but not all ovaries turn into fruits.