Filatova's: Duality as Complementation between Strong/Weak Functions
There are Filatova's descriptions from her English Socionics book. She describes how each type's weakest function (Suggestive) works like a lock, and each type's strongest function (Base) works like a key.
ILE - The Seeker
:Burning curiosity for everything new, inquisitiveness; unpredictable behavior; creative excitement; ability to recognize essence under the surface.
: Need for support in everything that concerns health, well-being, and leisure activities.
SEI - The Epicurean
: Focus on well-being and physical comfort; ability to create comfortable and pleasant feelings; good cooking capabilities.
: Seeing the surface rather than the essence; need for help in foreseeing potential outcome of actions and in evaluation of his/her potential capabilities.
LII - The Analyst
: Analytic thinking, classification, generalization; striving to understand general principles, for creating a model of the world systematization.
: Reserved and cautious in relations with others poorly understands emotional nuance; fears looking obtrusive and therefore prefers keeping a distance in communication.
ESE - The Enthusiast
: Cannot live without people and communication with them; creates atmosphere of an emotional feast for self and others; charges people with enthusiasm and good tonus.
: Difficulty in prioritization and information structuring; often makes precipitate decisions based on emotions.
IEI - The Romantic
: Romantic daydreamer who easily forgets reality for the sake of dreams which are the source of inspiration and understanding life.
: Follower, not leader; difficulty manifesting initiative and willing himself to do something or to undertake responsibility for something.
SLE - The Organizer
: Volitional action; Irrepressible lust for activity; sportive tonus and decisiveness; capability of not missing initiative and winning in competition.
: His/her courage very often over weighs caution. Sometimes he lacks inspiration. "For what sake am I doing this all?". He cannot self-inspire because of his mistrust for everything vague, mysterious and unearthly, and is thankful to those who can inspire him.
LSI - The Structurist
: Finds a stable structure and obeys its laws; systematic and concrete thinking.
: Poorly understands others' emotional reactions; secretive; often meets difficulties in communication.
EIE - The Performer
: Brilliantly manipulates other people's emotions, just like a conductor conducts an orchestra; affects people using a broad range of feelings.
: High emotionality warps judgments; logic subjugated to emotionality.
ILI - The Critic
: Holistic and systematic perception; foreseeing of far-going perspectives and upcoming problems, sometimes excessive caution.
: Inertia; difficulty mobilizing for necessary actions; need for outward stimuli and inspiration.
SEE - The Leader
: Irrepressible purposefulness; haste; self-confidence; leadership capabilities.
: Impulsive, prefers making future with his/her hands instead of trying to predict it (and thus often ignores even the most obvious dangers); good tactician but usually bad strategist.
LIE - The Entrepreneur
: Efficient working; dynamism; budgeting efforts; separating the wheat from the chaff.
: Weak understanding of nuances of intonation and of other people's moods; thankful to those who can unobtrusively help correct relations with other people.
ESI - The Guardian
: Has a quick eye of people's moods, and their relationships; moralist; observation of traditions and rituals.
: Preparing to work and work itself require effort; difficulty separating the wheat from the chaff; and establishing a balance between plans and possibilities.
IEE - The Initiator
: A talent for sensing promising opportunities, for discovering talents of people, for understanding the essence of matters.
: Weak sense of own body and needs, problems with household organization, carelessness in financial issues, preference for delegating such matters to someone else.
SLI - The Craftsman
: Dominance of the sensual world, harmony. balance and expediency in everything, aesthetics combined with practicality, good sense of own body, capability of creating comfort and well-being.
: Weak understanding of hidden processes and of one's own hidden capabilities, gratitude to those who help to understand his own iniquity.
LSE - The Professional
: Dominance of reality; need for people to submit to objective laws; importance of efficient work, high quality products, observation of law and order.
: Poorly understands nuances of feelings; holds to accepted behavioral conventions; confused by non-standard ethical situations; difficulty in changing habits.
EII - The Psychologist
: Sensitivity to others; obedient to moral norms; capable of empathizing and of establishing a good psychological climate; and expert in traditions.
: Insecure about ability to efficient work; excessive amounts of time and effort spent in achieving necessary results.