to teach; to instruct; to tell; to inform; to preach
nature; natural; spontaneous; naturally; spontaneously
difference; distinction; discrepancy; mistake; error
natural; right; proper; naturally; as a matter of course; rightly
judging from; on the basis of; from the point of view of
construction; building; putting up; erecting; creation; formulation
no more than; just; only; mere; goes no further than
solution (of an equation, inequality, etc.); root (e.g. of a polynomial); solution (to a given problem); answer; explanation; interpretation
to guide; to lead; to show the way; to derive; to deduce
reason; logic; sense; truth; right
will; volition; intention; intent; determination
wisdom; wit; sagacity; prajna (insight leading to enlightenment)
action; conduct; behaviour; behavior; mobilization; mobilisation
simple; easy; uncomplicated; brief; quick; light
result; consequence; coming to fruition; bearing fruit; as a result; consequently
painstaking; careful; meticulous; scrupulous; detailed; elaborate
to examine; to look up; to investigate; to check up; to sense; to study
because ...; for ...; the reason being ...; as for ...; when it comes to ...; regarding ...
gate (for entry, boarding, etc.); gate; logic element
one; for one thing; only; (not) even; just (e.g. "just try it"); some kind of; one type of
to want; to wish for; to request; to demand; to seek; to search for
nothing but; none other than
infinity; infinitude; eternity; infinite; limitless
potentiality; likelihood; possibility; availability
to fill; to become full (of); to wax (of the moon); to rise (of the tide); to flow; to expire (of a period of time)
wherein; therein; thereinto
to search for; to look for; to hunt for; to search (a house, pocket, etc.); to search through; to rummage in (e.g. a drawer)
counter for occurrences; a time; an instance; inning (baseball); round; episode; chapter
10,000; ten thousand; myriad; everything; all; (arch.) various
10^8; 100,000,000; hundred million
challenge; defiance; dare; attempt; try
to be worn down; to be reduced
time after time; countless times; many a time; dozens of times
painful; bitter; tough; difficult; cruel; harsh
near; close; beside; vicinity; proximity; besides
it is ... that ...; precisely; although; while; it is precisely because ... that ...; only because ...
emotion; feeling; feelings; sentiment
to untie; to unfasten; to unsew; to unstitch; to solve; to work out; to dispel (misunderstanding, etc.)
human being; human; person; character (of a person)
in the end; at the end of the day
to finish; to end; to merely result in something less severe than expected; to feel at ease; to feel unease or guilt for troubling someone; to be sorry
too; also; still; as before; even so; either way
proof-of-concept; demonstration experiment; verification test