Hans Viertler: professor, cientista, gestor e amigo

Hans Viertler, a visionary, an example of institutional commitment, a great scientist, excellent and dedicated teacher, highly respected as a professional and admired for his leadership, wisdom, generosity, good humor, professional capacity, and balance. A life dedicated to the consolidation of Chemistry in Brazil, the teaching chemistry, the IQ-USP, the Brazilian Chemical Society (SBQ) and the CRQ-fourth region. Hans, a friend with a heart bigger than himself!