Key Vocabularies from Khan's TED

Leverage: the ability to influence what people do

Mastery: great knowledge about or understanding of a particular thing; control or power

Shaky: not firm or safe, not seeming very successful ; likely to fail

Intense: very great/ strong, serious and often involving a lot of action in a short period of time, (of person) having or showing very strong feelings, opinions or thoughts about sb/sth

Perceived ability: the ability to notice or become aware of sth 

Shepherd: to guide sb or a group of people somewhere, making sure they go where you want them to go

Disengage: to become free; opposite to "engage"

Typically: usually; in a way that shows the usual qualities or features of a particular type of person, thing or group; in the way that you expect sb / sth to behave

Artificially: made or produced to copy sth natural; created by people

Constrain: to force sb to do sth or behave in a particular way

Reinforce: to make a feeling, an idea stronger

Perseverance: the quality of continuing to try to achieve a particular aim despite difficulties 

Grit: the courage and determination that makes it possible for sb to continue doing sth difficult or unpleasant

Through the agency of : as a result of the action of sb/sth

Skeptic: a person who usually doubts that claims or statements are true, especially those that other people believe in

Skepticism: an attitude of doubting that claims or statements are true or that sth will happen

Theoretically: concerned with the ideas and principles on which a particular subject is based, rather than with practice and experiment; that could possibly exist, happen or be true, although this is unlikely(Thesaurus Philosophically)

Impractical: not sensible or realistic

Logistically: the practical organization that is needed to make a complicated plan successful when a lot of people and equipment is involved

On-demand: done or happening whenever sb asks

Assessment: an opinion or a judgement about sb/sth that has been thought about very carefully;    the act of judging or forming an opinion about sb/sth

Simulation: a situation in which a particular set of conditions is created artificially in order to study or experience sth that could exist in reality; the act of pretending that sth is real when it is not

Literally: used to emphasize the truth of sth that may seem surprising; in a literal way

Pessimistic: expecting bad things to happen or sth not to be successful

Imperative: very important and needing immediate attention or action; expressing authority; a thing that is very important and needs immediate attention or action

Bureaucracy: the system of official rules and ways of doing things that a government or an organization has, especially when these seem to be too complicated

Entrepreneur: a person who makes money by starting or running businesses, especially when this involves financial risks

Automation: the use of machines to do work that was previously done by people

Tier: one of several levels in an organization or a system

Aspirational: wanting very much to achieve success in your career or to improve your social status and standard of living

Invert: to change the normal position of sth, especially by turning it upside down or by arranging it in the opposite order

Utopian: having a strong belief that everything can be perfect, often in a way that does not seem to be realistic or practical

Tap: to make use of a source of energy, knowledge, etc. that already exists

Potential: qualities that exist and can be developed; the possibility of sth happening or being developed or used

Equity: a situation in which everyone is treated equally

Civilization: a state of human society that is very developed and organized