“Advancing Reason, Science, and evidenced-based knowledge”
The lack of belief in a god or gods. Nothing more! Atheism does not make any claims for or against the existence of gods. It only talks about a lack of belief, not what atheists do believe; for this there are other terms such as secular humanists, naturalists, realists, and even Pastafarians.
A person who thinks and uses critical thinking skills without appealing to authority, traditions, or dogmas. Freethinkers create their own opinions based on facts, evidence, and reason.
Is a progressive philosophy of life that, without gods or other supernatural beliefs, affirms our ability and responsibility to use reason, ethics, and justice to achieve personal fulfillment while aspiring to a greater good for humanity.