mutation~selection

logic~intuition

life~death

invent~discovery

pulse~flow

sun~moon

man~god

chakra~flow

recycle~synthesize

female~male

position~momentum

birth~death

gravitation~radiation

light~vision

departure~arrival

chemical~electrical

brain~neuron

absorption~reflection

reaction~diffusion

compression~tension

symbol~icon

complementarity~contradiction

particle~wave

physics~metaphysics

stability~metastability

chemical~electrical

art~science

genotype~phenotype

experiment~theory

energy~matter

physics~metaphysics

electron~positron

mass~gravity

inorganic~organic

synapse~neuron

dynamic~static