I suppose I could say atheist, since I am one, but I do not identify closely with that label. All it says is that I don't believe in God. That says next to nothing about me.
I identify most strongly with my philosophy of life, which is called
Eudaimonism, and with my philosophical community, the
Fellowship of Reason. I have been a Eudaimonist for the past four or five years. Before then I would have called myself an Objectivist (which is closely related), and I was that for about ten years.
Eudaimonism is a nontheistic philosophical and spiritual path that upholds personal flourishing in this life as the ultimate ethical purpose and meaning of life, and reason as its ultimate means. It does not advocate belief in gods, disembodied spirits, supernatural realms or powers, or any afterlives -- rather it advocates what may be loosely thought of as a "scientific" conception of reality in which everything is natural and in which human beings are material, biological beings who are nevertheless conscious and may exercise volition. It sees human life and happiness as sacred values to be nourished, cherished, and honored.
Eudaimonism advocates an ethical orientation to life that includes several moral virtues (two examples: integrity and kindness), and a spiritual path that includes self-examination, self-actualization, and self-esteem. Know yourself, and be true to yourself. You are a diamond in the rough, so get out that chisel. Develop your talents and follow your calling in life. Strive always to achieve and maintain your self-respect.
While there is a strong emphasis on one's personal development, there is also an emphasis on valuing friendship, family, and community, and the Fellowship of Reason is a Eudaimonistic community that offers fellowship with likeminded people for the sake of personal growth, the enjoyment of good company, and the celebration of the sacred values of life.
eudaimonia,
Mark