Science and religion are very often presented as two opposing universes. The former is seen to be the privileged place of disinterested research, the chosen ground for free thought, while the second is often characterized by immutable principles and indisputable dogmas, to which we are called to adhere with blind and absolute trust. Analysis of both "fields" shows, however, that the reality is different: religion also contemplates research and discussion, while even science knows dogmas and prejudices. This is because it is typical of the human being, of any person, to question oneself, to doubt and also some times to close oneself in tetragonal certainties.This volume explores some of the most important themes for anyone seriously wishing to commit themselves along the path of knowledge and explains why one cannot stop at the plurality of answers on the truth, as well as on life and man (creationism and evolutionism). It argues that science and faith are both expressions of humans’ desire to know; they do not weaken each other nor are they mutually exclusive, but rather invite a close and constructive dialogue, free from ideological temptations.