Mary Ann Evans (1819 - 1880) Also known by her pen name George Eliot, was one of the leading English writers of the Victorian era .

Victor Hugo (1802 - 1885) French poet, novelist, and dramatist. He is considered to be one of the greatest French writers. 

Friedrich Wilhelm Nietzsche (1844 -1900) German philosopher, cultural critic, composer, poet, philologist, and a Latin and Greek scholar.

"Given that it serves as the brain’s built-in therapy mechanism regulating our negative moods, given that it acts as the brain’s janitor sweeping away toxins responsible for neurodegenerative diseases like Alzheimer’s, sleep may be the closest thing we have a superpower" ................. Read more

https://www.brainpickings.org