“The eye sees only what the mind is prepared to comprehend.”

“I have a friend who’s an artist and has sometimes taken a view which I don’t agree with very well. He’ll hold up a flower and say “look how beautiful it is,” and I’ll agree. Then he says “I as an artist can see how beautiful this is but you as a scientist take this all apart and it becomes a dull thing,” and I think that he’s kind of nutty. First of all, the beauty that he sees is available to other people and to me too, I believe. Although I may not be quite as refined aesthetically as he is … I can appreciate the beauty of a flower. At the same time, I see much more about the flower than he sees. I could imagine the cells in there, the complicated actions inside, which also have a beauty. I mean it’s not just beauty at this dimension, at one centimeter; there’s also beauty at smaller dimensions, the inner structure, also the processes. The fact that the colors in the flower evolved in order to attract insects to pollinate it is interesting; it means that insects can see the color. It adds a question: does this aesthetic sense also exist in the lower forms? Why is it aesthetic? All kinds of interesting questions which the science knowledge only adds to the excitement, the mystery and the awe of a flower. It only adds. I don’t understand how it subtracts.”

“I cannot teach anybody anything. I can only make them think”

“Faith, n. Belief without evidence in what is told by one who speaks without knowledge, of things without parallel.”

“The true value of man is not determined by his possession, supposed or real, of Truth, but rather by his sincere exertion to get to the Truth. It is not possession of Truth by which he extends his powers and in which his ever-growing perfectability is to be found. Possession makes one passive, indolent and proud. If God were to hold all Truth concealed in his right hand, and in his left only the steady and diligent drive for Truth, albeit with the proviso that I would always and forever err in the process, and to offer me the choice, I would with all humility take the left hand. ”

“The night before brain surgery, I thought about death. I searched out my larger values, and I asked myself, if I was going to die, did I want to do it fighting and clawing or in peaceful surrender? What sort of character did I hope to show? Was I content with myself and what I had done with my life so far? I decided that I was essentially a good person, although I could have been better–but at the same time I understood that the cancer didn’t care.I asked myself what I believed. I had never prayed a lot. I hoped hard, I wished hard, but I didn’t pray. I had developed a certain distrust of organized religion growing up, but I felt I had the capacity to be a spiritual person, and to hold some fervent beliefs. Quite simply, I believed I had a responsibility to be a good person, and that meant fair, honest, hardworking, and honorable. If I did that, if I was good to my family, true to my friends, if I gave back to my community or to some cause, if I wasn’t a liar, a cheat, or a thief, then I believed that should be enough. At the end of the day, if there was indeed some Body or presence standing there to judge me, I hoped I would be judged on whether I had lived a true life, not on whether I believed in a certain book, or whether I’d been baptized. If there was indeed a God at the end of my days, I hoped he didn’t say, ‘But you were never a Christian, so you’re going the other way from heaven.’ If so, I was going to reply, ‘You know what? You’re right. Fine.’I believed, too, in the doctors and the medicine and the surgeries–I believed in that. I believed in them. A person like Dr. Einhorn [his oncologist], that’s someone to believe in, I thought, a person with the mind to develop an experimental treatment 20 years ago that now could save my life. I believed in the hard currency of his intelligence and his research.Beyond that, I had no idea where to draw the line between spiritual belief and science. But I knew this much: I believed in belief, for its own shining sake. To believe in the face of utter hopelessness, every article of evidence to the contrary, to ignore apparent catastrophe–what other choice was there? We do it every day, I realized. We are so much stronger than we imagine, and belief is one of the most valiant and long-lived human characteristics. To believe, when all along we humans know that nothing can cure the briefness of this life, that there is no remedy for our basic mortality, that is a form of bravery.To continue believing in yourself, believing in the doctors, believing in the treatment, believing in whatever I chose to believe in, that was the most important thing, I decided. It had to be.Without belief, we would be left with nothing but an overwhelming doom, every single day. And it will beat you. I didn’t fully see, until the cancer, how we fight every day against the creeping negatives of the world, how we struggle daily against the slow lapping of cynicism. Dispiritedness and disappointment, these were the real perils of life, not some sudden illness or cataclysmic millennium doomsday. I knew now why people fear cancer: because it is a slow and inevitable death, it is the very definition of cynicism and loss of spirit.So, I believed.”

“Religion can never reform mankind because religion is slavery. It is far better to be free, to leave the forts and barricades of fear, to stand erect and face the future with a smile. It is far better to give yourself sometimes to negligence, to drift with wave and tide, with the blind force of the world, to think and dream, to forget the chains and limitations of the breathing life, to forget purpose and object, to lounge in the picture gallery of the brain, to feel once more the clasps and kisses of the past, to bring life’s morning back, to see again the forms and faces of the dead, to paint fair pictures for the coming years, to forget all Gods, their promises and threats, to feel within your veins life’s joyous stream and hear the martial music, the rhythmic beating of your fearless heart. And then to rouse yourself to do all useful things, to reach with thought and deed the ideal in your brain, to give your fancies wing, that they, like chemist bees, may find art’s nectar in the weeds of common things, to look with trained and steady eyes for facts, to find the subtle threads that join the distant with the now, to increase knowledge, to take burdens from the weak, to develop the brain, to defend the right, to make a palace for the soul. This is real religion. This is real worship”

“Write what you know. That should leave you with a lot of free time.”

“I know that the molecules in my body are traceable to phenomena in the cosmos. That makes me want to grab people on the street and say: ‘Have you HEARD THIS?”

“Confidence is ignorance. If you’re feeling cocky, it’s because there’s something you don’t know.”

“I was gratified to be able to answer promptly, and I did. I said I didn’t know.”

“You can only be afraid of what you think you know.”

“No, our science is no illusion. But an illusion it would be to suppose that what science cannot give us we can get elsewhere.”

“Popular culture is a place where pity is called compassion, flattery is called love, propaganda is called knowledge, tension is called peace, gossip is called news, and auto-tune is called singing.”