The child often sees only what he already knows. He projects the whole of his verbal thought into things. He sees mountains as built by men, rivers as dug out with spades, the sun and moon as following us on… — Jean Piaget Copy Share Image
In general, the bigger a mountain the older it is. The biggest mountains were built before any others, because when they were built there was incomparably more flammable material within the Earth. Over the many thousands of years that have… — Mikhail Lomonosov Copy Share Image
