I need to know if there is any thing wrong with this sentence?

Do you need the "of fleeting centuries" part? It seems wordy. Why do you need 2 of the word "of"? How about "A constant rate of literary works have been written throughout the course of the centuries of humanities emergence from instinctive comprehension." or A constant rate of literary works of humanities emergence from instinctive comprehension has been written throughout the course of the centuries (or fleeting centuries).