@Stormalv,
And Huxley was a mystic.
Besides, only the first quote seems to be atheistic.
"I cannot imagine a God who rewards and punishes the objects of his creation, whose purposes are modeled after our own -- a God, in short, who is but a reflection of human frailty. Neither can I believe that the individual survives the death of his body, although feeble souls harbor such thoughts through fear or ridiculous egotism."
This quote only denies God with certain traits, and rejects the notion that ego survives bodily death. Notice that life after death is not altogether ruled out, but only a certain sort.
Quote:"I do not believe in the immortality of the individual, and I consider ethics to be an exclusively human concern with no superhuman authority behind it."
Like the previous quote, this denies the immortality of the individual, not life after death; the quote leaves the larger question of life after death open. As for ethics and superhuman authority, we can make more than one theistic interpretation. For example, we might make a distinction between ethics and morality wherein ethics are not founded upon divine authority, but morals are based on divine authority. Or maybe the author thought that, God or no God, man can determine what is ethical or unethical and that humans are responsible for their ethical decisions.
Quote:"If people are good only because they fear punishment, and hope for a reward, then we are a sorry lot indeed." -Albert Einstein
This is just as easily applied to notions of God as to politics. I see nothing inherently religious about this statement. Perhaps in context.
Quote:"You never see animals going through the absurd and often horrible fooleries of magic and religion. Only man behaves with such gratuitous folly. It is the price he has to pay for being intelligent but not, as yet, intelligent enough."
-Aldous Huxley
One can be a theist, even a monotheist, without associating with any particular religion or having anything to do with magic.