"I always wanted to learn to distinguish the true from the false, in order to see clearly in my actions and to walk with confidence in this life."

"I am accustomed to take my sleep for granted, and I often imagine that I dream of the most important things, when after all I am only dreaming."

"I perceived it was possible to arrive at knowledge highly useful in life; and that, instead of the speculative philosophy usually taught in the Schools, we might find a practical, by means of which, k…"

"If you would be a real seeker after truth, it is necessary that at least once in your life you doubt, as far as possible, all things."

"The light of natural reason shows us that there is a God."