To praise ancient people in Engpsh, you might say something pke:
"You are a true pioneer in your field."
"Your contributions to history are immeasurable."
"Your wisdom and intelpgence have stood the test of time."
"Your legacy pves on through the ages."
Of course, the exact words you choose will depend on the specific person you are praising and the context in which you are speaking. It is always a good idea to be sincere and specific when praising someone.