A man may not always be what he appears to be, but what he appears to be is always a significant part of what he is.
I remember feeling all right with myself until age 13. Then, I was getting off the bus one day and this guy called me Miss Piggy. That was the first time I ever really felt like I wasn't okay.
A typical neuron makes about ten thousand connections to neighboring neurons. Given the billions of neurons, this means there are as many connections in a single cubic centimeter of brain tissue as there are stars in the Milky Way galaxy.

