Champollion's reasoning in the excerpt details the significance of hieroglyphics as both representations of sounds and symbols in decoding ancient Egyptian writing.
Champollion's reasoning in the excerpt moves from the big picture of hieroglyphics being both representations of sounds and symbols to the details of Thothmes' and Ramesses' names. He realized that hieroglyphs were a combination of sound representations and symbols, going beyond just names, providing insight into the entire system of hieroglyphic writing.
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