“The largest churches in the history of Christianity are in existence at this very moment. Most of them are not in the United States.”

“Three hundred years ago people in England were putting witches to death. Was that what you call the 'Rule of Human Nature or Right Conduct?’ But surely the reason we do not execute witches is that we do not believe there are such things. If we did—if we really thought that there were people going about who had sold themselves to the devil and received supernatural powers from him in return and were using these powers to kill their neighbours or drive them mad or bring bad weather—surely we would all agree that if anyone deserved the death penalty, then these filthy quislings did? There is no difference of moral principle here: the difference is simply about matter of fact. It may be a great advance in knowledge not to believe in witches: there is no moral advance in not executing them when you do not think they are there. You would not call a man humane for ceasing to set mousetraps if he did so because he believed there were no mice in the house.”

“My difficulties lay deeper. It was more than I could believe that Jesus was the only incarnate son of God, and that only he who believed in him would have everlasting life. If God could have sons, all of us were His sons. If Jesus was like God, or God Himself, then all men were like God and could be God Himself. My reason was not ready to believe literally that Jesus by his death and by his blood redeemed the sins of the world. Metaphorically there might be some truth in it. Again, according to Christianity only human beings had souls, and not other living beings, for whom death meant complete extinction; while I held a contrary belief. I could accept Jesus as a martyr, an embodiment of sacrifice, and a divine teacher, but not as the most perfect man ever born. His death on the Cross was a great example to the world, but that there was anything like a mysterious or miraculous virtue in it my heart could not accept. The pious lives of Christians did not give me anything that the lives of men of other faiths had failed to give. I had seen in other lives just the same reformation that I had heard of among Christians. Philosophically there was nothing extraordinary in Christian principles. From the point of view of sacrifice, it seemed to me that the Hindus greatly surpassed the Christians. It was impossible for me to regard Christianity as a perfect religion or the greatest of all religions.”

“To the corruptions of Christianity I am, indeed opposed; but not to the genuine precepts of Jesus himself. I am a Christian, in the only sense in which he wished any one to be; sincerely attached to his doctrines, in preference to all others.”

“The only place outside Heaven where you can be perfectly safe from all the dangers and perturbations of love is Hell.”

“Fail early, fail often, but always fail forward.”

“It is impossible to experience fear, hate, or defeat when we are laughing.”

“L'interesse per l'uomo in se stesso e per il suo destino deve sempre costituire l'obiettivo primario di tutti gli sforzi compiuti in campo tecnologico [...] affinché le creazioni della nostra mente possano rappresentare un bene e non una maledizione per l'umanità. Non scordatevelo mai, mentre siete alle prese con diagrammi ed equazioni." (dal discorso tenuto nel 1931 agli studenti del California Institute of Technology)”

“Whatever affects one directly, affects all indirectly. I can never be what I ought to be until you are what you ought to be. This is the interrelated structure of reality.”

“Those who believe religion and politics aren't connected don't understand either.”

“Human language can but imperfectly describe God's ways. I am sensible of the fact that they are indescribable and inscrutable. But if mortal man will dare to describe them, he has no better medium than his own inarticulate speech.”

“By reading so much, my vocabulary automatically improved along with my comprehension.”

“Try not to become a man of success. Rather become a man of value.”

“You must make your choice: either this man was, and is, the Son of God, or else a madman or something worse. You can shut him up for a fool, you can spit at him and kill him as a demon; or you can fall at his feet and call him Lord and God. But let us not come with any patronizing nonsense about his being a great human teacher. He has not left that open to us. He did not intend to.”

“You may have some major strongholds in your life that need to be broken. Let me encourage you by saying, “God is on your side.” There is a war going on, and your mind is the battlefield. But the good news is that God is fighting on your side.”