Atoms and void
A quote from the “laughing philosopher” Democritus (c. 460 – c. 370 BC), one of the fathers of atomism.
νόμωι (γάρ φησι) γλυκὺ καὶ νόμωι πικρόν, νόμωι θερμόν, νόμωι ψυχρόν, νόμωι χροιή, ἐτεῆι δὲ ἄτομα καὶ κενόν
-Δημόκριτος
Sweet exists by convention, bitter by convention, colour by convention; atoms and Void [alone] exist in reality.
-Democritus (translation by Freeman 1948)