The Diplo calendar 2016 realized by Stefano Baldi and Ed Gelbstein presents a selection of quotes from the Classical World for living and working better.
For the month of October the selected quotation is by Pliny the Elder, Roman author, naturalist, and natural philosopher, as well as naval and army commander of the early Roman Empire and personal friend of the emperor Vespasian.
The only certainty is that nothing is certain
Photo credit: Zdenko Zivkovic (CC BY-NC-SA 2.0)