- See also changes related to Humanism, or pages that link to Humanism or to this page or whose text .
- Philosophy : The study of the meaning and justification of beliefs about the most general, or universal, aspects of things.
- Ethics : The branch of philosophy dealing with standards of good and evil.
- Atheism : Absence of belief in any god or other supernatural beings; distinct from antitheism, or opposition to religion, and agnosticism, the position that one cannot know whether such beings exist.
- Deism : A religious philosophy which holds that religious beliefs must be founded on human reason and observed features of the natural world, and that these sources reveal the existence of a God or supreme being.
- Unitarian Universalism : A liberal religious tradition, beginning with separate movements that rejected the Trinity and other than universal salvation, and evolved into a spiritual environment also accepting humanism and earth-centered spirituality
- Enlightenment : In religion, the point at which an aspirant breaks through the barrier of temporal existence and has a direct experience of God. In history, the enlightenment was a philosophical movement of the 18th century that advocated the use of reason as the basis for belief.
- Renaissance : Cultural movement that spanned roughly the 14th to the 17th century, beginning in Florence in the Late Middle Ages and later spreading to the rest of Europe.
- Psychology : The study of systemic properties of the brain and their relation to behaviour.