Immanuel Kant
Kant was born on April 22, 1724 into a Prussian German family of Lutheran Protestant faith in Königsberg, East Prussia. Baptized 'Emanuel', he later changed his name to 'Immanuel' after learning Hebrew. He was brought up in a Pietist household that stressed religious devotion, humility, and a literal interpretation of the Bible. His education was strict, punitive and disciplinary, and focused on Latin and religious instruction over mathematics and science. Kant maintained Christian ideals for some time, but struggled to reconcile the faith with his belief in science. In his "Groundwork of the Metaphysic of Morals", he reveals a belief in immortality as the necessary condition of humanity's approach to the highest morality possible. However, as Kant was skeptical about some of the arguments used prior to him in defence of theism and maintained that human understanding is limited and can never attain knowledge about God or the soul, various commentators have labelled him a philosophical agnostic.
Otto Kandler
Otto Kandler was born on 23 October 1920 in Deggendorf, Bavaria, as the 6th child of the family of a market gardener. Growing up and helping in his father's garden, early on, he became interested in plant life and nature in general. 
He attended school for 8 years. When he was about twelve years old he had read about Charles Darwin and mentioned it to a catholic priest. The priest punished him with two strikes on his hands with a rod. However he remained interested in the origin and evolution of organisms for the rest of his life.