The assumption that any substance consists of the smallest particles – atoms, was expressed about 2500 years ago by the ancient Greek philosophers Leucippus and Democritus. According to them, all bodies arise as a result of the combination of atoms. Differences in the properties of bodies are explained by the fact that bodies are composed of different atoms or identical atoms are connected in different ways in space.
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.