Ancient languages

Can a modern (educated) Chinese native read the original texts of Confucius or Sun Tzu?

Can a modern Greek read Plato?

I'm wondering if these languages have changed too much over the centuries or if the ancient form is still intelligable to a modern speaker.

Confucius
Why would a Chinaman be able to read texts in Latin?!

>>2
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>>2
i lol'd

>>4
YHBT