"I am more afraid of my own heart than of the pope and all his cardinals. I have within me the great pope, Self."

"Medicine causes illness, Mathematics melancholy, and Theology sinful people."

"War is the greatest plague that can afflict humanity, it destroys religion, it destroys states, it destroys families. Any scourge is preferable to it."

"This life therefore is not righteousness, but growth in righteousness, not health, but healing, not being but becoming, not rest but exercise. We are not yet what we shall be, but we are growing towar…"

"What devilish unchristian thing would you not undertake?"