Plato. Nietzsche. Marcus Aurelius....Kirkegaard....few others...must admit it has been a while I read Philosophy. However, I have read all classic philosophers.

I guess socreties....I love the I know I know not.

"Never Doubt the Man I See in The Mirror"

Any Rand demonstrates amazing philosophies in her fiction that seem to transcend her understanding and actual philosophical writing.

Bertrand Russell

george carlin and Sir David Attenborough.

Alan Watts for an easy read. And there's always a bit of humour as well. Must have a bit of humour when discussing 'deep' philosophical topics.

You man not consider this a serious answer but I'll throw it out there. The first serious series of books I read, as a child, were the various works of John Muir. Years later I read everything Edward Abbey wrote. Their philosophy was saving the planet for future generations. It seems that school of thought has gone by the wayside.

yea. buddha . his teaching help bring peace and morality. forgiveness ect. buddhism believe ot or not doesnt pressure the beliefs in god or spirits or afterlifes of any sort. its atheist and science friendly and doesnt even require you to agree with everything they teach. they extremely tollerant of others beliefs as well