אני חושב, משמע אני קיים
(דקארט)

Cogito, ergo sum
(Descartes)

The tiles in Entin Square, which is located at the entrance to Tel Aviv University, include covertions and comments by scientists and other intellectuals.

In the current tile appears the theorem of the French philosopher René Descartes, who appeared in his book "The Principles of Philosophy"
The Latin translation of the sentence is: "I think, therefore I am"

Three months later, the tiles were photographed in the same square. During the photograph, it was discovered that a number of tiles had been removed and replaced by other tiles . In this tile the design is different, see the other tile Click for cover's details

More details can be found here Click for the item in The ultimate street signs site