Here they are saying that the best things come in two, so why not test this hypothesis and see where it leads.

oppression / liberty       dominance / subordination       balanced / unsteady       birth / death       starvation / gluttony       light / dark

evil / good       drought / flooding       health / sickness       success / failure       take / give       victory / defeat       beautiful / ugly       up / down

pride / shame       clean / filthy       big / small       never / forever       hard / easy       friends / enemies       perfect / flawed       awake / asleep

right / wrong       alone / together       strong / weak       translucent / opaque       sane / insane       remember / forget       free / imprisoned

pain / pleasure       create / destroy       end / begin       whisper / scream       kind / cruel       rational / illogical       impartial / biased

modest / arrogant       timid / bold       win / lose       believe / doubt       colourful / drab       lethargic / energetic       true / false       positive / negative

lead / follow       appear / disappear       sturdy / fragile       improve / worsen       endure / give up       adult / baby       mother / father

love / hate       peace / war       cowardice / bravery       after / before       answer / question       behind / ahead       cold / hot       fire / water

black / white       curly / straight       day / night       dumb / smart       everything / nothing       fact / fiction      fast / slow       man / woman

happy / sad       save / spend       rise / fall       quiet / noisy       push / pull       old / new       lost / found       less / more       tame / wild

yes / no       add / subtract       multiply / divide       smile / frown       literal / figurative       finish / start       moon / sun       purpose / accident

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