The fear of infinity is a form of myopia that destroys the possibility of seeing the actual infinite, even though it in its highest form has created … - Galileo Galilei

With regard to matters requiring thought: the less people know and understand about them, the more positively they attempt to argue concerning them.

La mayor sabiduría que existe es conocerse a uno mismo.

I am certainly interested in a tribunal in which, for having used my reason, I was deemed little less than a heretic. Who knows but men will reduce me from the profession of a philosopher to that of historian of the Inquisition! But they behave to me in order that I may become the ignoramus and the fool of Italy...