mem·o·ry

– noun
1. the mental capacity or faculty of retaining and reviving facts, events, impressions, etc., or of recalling or recognizing previous experiences.
2. this faculty as possessed by a particular individual
3. the act or fact of retaining and recalling impressions, facts, etc.; remembrance; recollection.
4. the length of time over which recollection extends.
5. a mental impression retained; a recollection.
6. the reputation of a person or thing, esp. after death; fame.
7. the state or fact of being remembered.
8. a person, thing, event, fact, etc., remembered.
9. commemorative remembrance; commemoration.
10. the ability of certain materials to return to an original shape after deformation.

ob·liv·i·ous

– adj.
1. unmindful; unconscious; unaware.
2. forgetful; without remembrance or memory.
3. inducing forgetfulness.

ob·liv·i·on

– noun
1. the state of being completely forgotten or unknown.
2. the state of forgetting or of being oblivious.
3. official disregard or overlooking of offenses; pardon; amnesty.

meth·od

– noun
1. a procedure, technique, or way of doing something, esp. in accordance with a definite plan.
2. a manner or mode of procedure, esp. an orderly, logical, or systematic way of instruction, inquiry, investigation, experiment, presentation, etc.
3. order or system in doing anything.
4. orderly or systematic arrangement, sequence, or the like.

met·a·phys·ics

– noun
1. the branch of philosophy that treats of first principles, includes ontology and cosmology, and is intimately connected with epistemology.
2. philosophy, esp. in its more abstruse branches.
3. the underlying theoretical principles of a subject or field of inquiry.

on·tol·o·gy

– noun
1. the branch of metaphysics that studies the nature of existence or being as such.

cos·mol·o·gy

– noun
1. the branch of philosophy dealing with the origin and general structure of the universe, with its parts, elements, and laws, and esp. with such of its characteristics as space, time, causality, and freedom.
2. the branch of astronomy that deals with the general structure and evolution of the universe.

e·pis·te·mol·o·gy

– noun
1. a branch of philosophy that investigates the origin, nature, methods, and limits of human knowledge.