Symbols

On symbols: 

"When it came to communication, we do know that the ancients were not so interested in words and speech. They were more concerned with symbols, colors, rhythms, numbers, geometry and with dance and music. The greatest of riches possessed by ancestral humankind was the ability to convey the most abstract philosophical concepts via composite symbols. No modern form of constructive intellection could even have come into being without these bequeathments."