person; someone; human beings; mankind; human (Homo sapiens); (other) people; others
time; season; period; phase; stage
to study (in depth); to learn; to take lessons in
later on; subsequently; by and by; after a while
to teach; to take a teaching job
contribution (furthering a goal or cause); services (to a cause)
from the beginning; from scratch
from the standpoint of; as a matter of (e.g. fact); aboard (a ship or vehicle); on top of; first volume (e.g. book); superior quality; best
image (in one's mind); impression; (computer) image; depiction (e.g. of a product); rendition
square measure; size (e.g. of land); area; surface
continuation; succession; series
while; during; while; although; all; both
small; little; slight; below average (in degree, amount, etc.); low (e.g. sound); soft (e.g. voice)
in accordance with; according to; as X, then Y (e.g. as we age we gain wisdom, as wine matures it becomes more valuable, etc.)
eternal; unlimited; endless
to approach; to draw near; to get close; to get acquainted with; to get closer to; to get to know
it is ... that ...; precisely; although; while; it is precisely because ... that ...; only because ...
up to now; so far; traditional; conventional; usual
without change; as is; just like; extremely similar; immediately; just after
to make (the best) use of; to put to good use; to let live; to keep alive; to revive; to resuscitate
treatment; service; handling (of a machine, tool, etc.); operation; treating as; treating like
to become possible; to become able to (do)
infinitesimal calculus; (differential and integral) calculus
whole; entirety; whatever (is the matter)
four arithmetic operations; basic arithmetic operations
to be aware of; to know; to notice; to feel; to understand; to comprehend; to remember
to restrict; to limit; to be restricted to; to be limited to; to be best (for); to be the best plan
such ... as; or some such
polynomial; integral expression
numerator; molecule; member; element