己

autoscopy

self-concept; self-perspective; self-image

self-induction

Biology

selfish gene

relatives and acquaintances

self-checking; self-diagnosis

self-cultivation; self-culture

self-aggrandizement; self-glorification; something becoming large by feeding upon itself

self-inductance

self-isolation

small western mirror with mercury added to the glass (Edo period)

autoimmune hemolytic anemia; autoimmune haemolytic anaemia

autotransfusion (infusion of one's own blood)

diacritical marks used for interpreting classical Chinese

Medicine

narcissistic personality disorder; NPD

autograft

own shares; treasury stock

autoantibody

introduction of someone else

selflessness; selfless devotion to the service of others

Proverb; From the Analects of Confucius

do not do unto others what you would not have done unto you

Proverb

know your enemy, know thyself, and you shall not fear a hundred battles

Proverb; From Sun Tzu's The Art of War

if you know your enemy and know yourself, in a hundred battles you will never be defeated; know your enemy

Formal or literary term

each (and every one); individually