Luiz Hildebrando Pereira da Silva (1928-2014) graduated from the University of São Paulo Medical School in 1953 and shortly thereafter joined the Department of Parasitology, then chaired by Professor Samuel Pessoa, a leading Brazilian parasitologist. Samuel Pessoa and Luiz Hildebrando both shared a deep commitment to social problems. They considered it their duty to direct their scientific rese...

Hildegard of Bingen was born in 1098, of noble parentage, at Böckelheim, on the River Nahe, near Sponheim. Destined from an early age to a religious life, she passed nearly all her days within the walls of Benedictine houses. She was educated and commenced her career in the isolated convent of Disibodenberg, at the junction of the Nahe and the Glan, where she rose to be abbess. In 1147 she and ...