Know Thyself?

The grandest illusion anyone can have is the fallacious belief that they know anything about who they are.

What makes a person who they are? What gives a human being their identity?

Choices they make?
Actions they take?
Thoughts they may have?
Whatever makes them laugh?
Things that make them cry?
Or is it whenever they lie?

The only truth lies in the fact that you have no idea what you will do in a given situation until you are placed in it and act. Even then, faced with the same situation again, you still don't know if you will act in the same manner you did the first time. The good part about this is that it certainly makes life more interesting.