We are a mechanism, a collection of material parts that are attracted to some things, and repelled from others.
We are a thinking thing, a mind.
We are perceiving things, the locus of sensation.
We are transcendental. We take in the whole world, and the world is us.
We are both part of the natural (causal) world, and we are free beings, above the causal world.
We are in the process of developing into self-conscious beings, and at the same time we are shaping the world to look like us.
We are producers and consumers. We are products of the economic forces in the world.
We are story-tellers. We write fiction, and we are the main character in our novel.
We are defined by how we regard others. There is no "I" by itself, but always an I in relation to what we are engaged in, and who (or what) we are engaged in it with.
We are the conflict of our unconscious, given rational form by our conscious mind.
We are the only ones who can ask the question "who am I?" and pursue a variety of answers.
We are nothing. We have no definition, but rather define ourselves by our actions.