“The fourfold root of the principle of sufficent reason is "Anything perceived has a cause. All conclusions have premises. All effects have causes. All actions have motives.”

“Small causes can often have large effects. Smaller causes can have even bigger effects, and the very biggest effects frequently have no cause at all. Witness, for example, the world. It was created out of nothing, and that has made it the worst calamity the world has ever seen.”

“All human actions have one or more of these seven causes: chance, nature, compulsion, habit, reason, passion, and desire.”

“Of course all such conclusions about appropriate actions against the rich and powerful are based on a fundamental flaw: This is us, and that is them. This crucial principle, deeply embedded in Western culture, suffices to undermine even the most precise analogy and the most impeccable reasoning.”

“If everything has a cause, then God must have a cause. If there can be anything without a cause, it may just be the world as God...”

“All the evils that men cause to each other because of certain desires, or opinions or religious principles, are rooted in ignorance. [All hatred would come to an end] when the earth was flooded with the knowledge of God.”