It is said that we live in the age of light, but it would be truer to say that we are living in that of twilight; here and there a luminous ray pierces the mist of darkness but it does not light to full clearness either our reason or our heart. Men are not of one mind, scientists dispute, and where there is discord, truth is not yet apprehended.The most important objects for humanity are still undetermined. No one is agreed wither on the principal of reason, the principal of morality or on the cause of the will, This proves that though we are dwelling in a reputed age of light we do not well understand what emanates from our hearts-and what from our heads. Probably we should reach this knowledge much sooner if we did not imagine that we have the torch of science already in our hands, or if we cast a look on our weakness and recognize that we need a higher illumination.