Niels Bohr Institute sculptor Rikke Raben for the Niels Bohr Institute. On the front is a portrait of Niels Bohr, the atom sign and stars. The illustration on the back is inspired by a quote from Bohr: "What is it that we human beings ultimately depend on? We depend on our words. We are suspended in language. Our task is to communicate experience and ideas to others". On the back of the medal: "Unity of Knowledge" – the title of a lecture given by Bohr at Columbia University in 1954. "Nosce te ipsum" is Latin and means "know thyself". This quote originates from
Atrévete-te-te The song became a big success on the "Billboard" Hot Latin Songs chart, peaking at number 15. It also peaked at number six on the U.S. "Latin Tropical Airplay" chart. Atrévete-te-te "Atrévete-te-te" () is a Grammy-nominated reggaeton song by Puerto Rican urban duo Calle 13 from their eponymous debut album "Calle 13", released in February 2006, by White Lion Records. It is one of the duo's best known songs. It was a hit single in many Latin American countries. The video for this single won the Latin Grammy Award for Best Short Form Music Video at the Latin Grammy Awards