Superstition is, always has been, and forever will be, the foe of progress, the enemy of education and the assassin of freedom.

With their backs to the sunrise they worship the night.

Science built the Academy, superstition the inquisition

The intellectual advancement of man depends on how often he can exchange an old superstition for a new truth

There are some truths, however, that we should never forget: Superstition has always been the relentless enemy of science; faith has been a hater of demonstration; hypocrisy has been sincere only in its dread of truth, and all religions are inconsis

The history of intellectual progress is written in the lives of infidels