--- title: "2 Anthropic principle Quotes By Steven Weinberg" description: "2 Anthropic principle quotes by Steven Weinberg. Plus more from Steven Weinberg and more Anthropic principle sayings from other authors." image: "https://sms4smile.com/quotes/i/1e1/steven-weinberg-3159_anthropic-principle_known-as-the-anthropic-principle-ehich-s_528506.png" --- > [“…known as the anthropic principle, ehich states that the laws of nature should allow the existence of intelligent beings that can ask about the laws of nature.”](https://sms4smile.com/quotes/steven-weinberg/known-as-the-anthropic-principle-ehich-states-that-the-laws-of-nature/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) [Image](https://sms4smile.com/quotes/i/1e1/steven-weinberg-3159_anthropic-principle_known-as-the-anthropic-principle-ehich-s_528506.png) > [“The idea of an anthropic principle began with the remark that the laws of nature seem surprisingly well suited to the existence of life. A famous example is provided by the synthesis of the elements. According to modern ideas, this…](https://sms4smile.com/quotes/steven-weinberg/the-idea-of-an-anthropic-principle-began-with-the-remark-that-the/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) [Image](https://sms4smile.com/quotes/i/573/steven-weinberg-3159_anthropic-principle_the-idea-of-an-anthropic-principle-began_1753708.jpg) ## More by Steven Weinberg > [On balance the moral influence of religion has been awful.](https://sms4smile.com/quotes/steven-weinberg/on-balance-the-moral-influence-of-religion-has-been-awful/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [“The apparent strengths of the forces in any field theory depend on two kinds of numerical parameter: the masses (if any) of the particles…](https://sms4smile.com/quotes/steven-weinberg/the-apparent-strengths-of-the-forces-in-any-field-theory-depend-on/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [“Many people do simply awful things out of sincere religious belief, not using religion as a cover the way that Saddam Hussein may have…](https://sms4smile.com/quotes/steven-weinberg/many-people-do-simply-awful-things-out-of-sincere-religious-belief/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [This is often the way it is in physics - our mistake is not that we take our theories too seriously, but that we…](https://sms4smile.com/quotes/steven-weinberg/this-is-often-the-way-it-is-in-physics-our-mistake-is-not-that-we/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [With or without religion, you would have good people doing good things and evil people doing evil things. But for good people to do…](https://sms4smile.com/quotes/steven-weinberg/with-or-without-religion-you-would-have-good-people-doing-good-things/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [I would say it's a lot easier to develop a decoy system than to develop the intercontinental ballistic missile itself. I would think that…](https://sms4smile.com/quotes/steven-weinberg/i-would-say-it-s-a-lot-easier-to-develop-a-decoy-system-than-to/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [Rational argument can be defeated by refusing to argue rationally.](https://sms4smile.com/quotes/steven-weinberg/rational-argument-can-be-defeated-by-refusing-to-argue-rationally/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [The universe is an enormous direct product of representations of symmetry groups.](https://sms4smile.com/quotes/steven-weinberg/the-universe-is-an-enormous-direct-product-of-representations-of/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [Its a consequence of the experience of science. As you learn more and more about the universe, you find you can understand more and…](https://sms4smile.com/quotes/steven-weinberg/its-a-consequence-of-the-experience-of-science-as-you-learn-more-and/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [Our job in physics is to see things simply, to understand a great many complicated phenomena in a unified way, in terms of a…](https://sms4smile.com/quotes/steven-weinberg/our-job-in-physics-is-to-see-things-simply-to-understand-a-great-many/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [“Plato and the neo-Platonists taught that the beauty we see in nature is a reflection of the beauty of the ultimate, the nous. For…](https://sms4smile.com/quotes/steven-weinberg/plato-and-the-neo-platonists-taught-that-the-beauty-we-see-in-nature/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [An expert is a person who avoids the small errors while sweeping on to the grand fallacy.](https://sms4smile.com/quotes/steven-weinberg/an-expert-is-a-person-who-avoids-the-small-errors-while-sweeping-on/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [If (the antiproton) had not been discovered, the foundations of physics really would have crumbled.](https://sms4smile.com/quotes/steven-weinberg/if-the-antiproton-had-not-been-discovered-the-foundations-of-physics/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [Even though I knew pretty early that I was going to be a scientist, it wasn't the science that interested me in science fiction;…](https://sms4smile.com/quotes/steven-weinberg/even-though-i-knew-pretty-early-that-i-was-going-to-be-a-scientist-it/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) > [If history is any guide at all, it seems to me to suggest that there is a final theory. In this century we have…](https://sms4smile.com/quotes/steven-weinberg/if-history-is-any-guide-at-all-it-seems-to-me-to-suggest-that-there/) [Steven Weinberg](https://sms4smile.com/quotes/author/steven-weinberg/) ```json { "@context": "https://schema.org", "@graph": [ { "@type": "ItemList", "@id": "https://sms4smile.com/quotes/about/anthropic-principle/steven-weinberg/#itemlist", "name": "2 Anthropic principle Quotes By Steven Weinberg", "numberOfItems": 2, "itemListElement": [ { "@type": "ListItem", "position": 1, "item": { "@type": "Quotation", "text": "“…known as the anthropic principle, ehich states that the laws of nature should allow the existence of intelligent beings that can ask about the laws of nature.”", "creator": { "@type": "Person", "name": "Steven Weinberg" }, "url": "https://sms4smile.com/quotes/steven-weinberg/known-as-the-anthropic-principle-ehich-states-that-the-laws-of-nature/", "image": { "@type": "ImageObject", "@id": "https://sms4smile.com/quotes/i/1e1/steven-weinberg-3159_anthropic-principle_known-as-the-anthropic-principle-ehich-s_528506.png", "contentUrl": "https://sms4smile.com/quotes/i/1e1/steven-weinberg-3159_anthropic-principle_known-as-the-anthropic-principle-ehich-s_528506.png", "url": "https://sms4smile.com/quotes/i/1e1/steven-weinberg-3159_anthropic-principle_known-as-the-anthropic-principle-ehich-s_528506.png", "width": 1080, "height": 1080, "caption": "“…known as the anthropic principle, ehich states that the laws of nature should allow the existence of…” — Steven Weinberg", "creditText": "SMS4Smile Quotes", "creator": { "@id": "https://sms4smile.com/quotes/#organization" } } } }, { "@type": "ListItem", "position": 2, "item": { "@type": "Quotation", "text": "“The idea of an anthropic principle began with the remark that the laws of nature seem surprisingly well suited to the existence of life. A famous example is provided by the synthesis of the elements. According to modern ideas, this synthesis began when the universe was about three minutes old (before then it was too hot for protons and neutrons to stick together in atomic nuclei) and was later continued in stars. It had originally been though that the elements were formed by adding one nuclear particle at a time to atomic nuclei, starting with the simplest element, hydrogen, whose nucleus consists of just one particle (a proton). But, although there was no trouble in building up helium nuclei, which contain four nuclear particles (two protons and two neutrons), there is no stable nucleus with five nuclear particles and hence no way to take the next step. The solution found eventually by Edwin Salpeter in 1952 is that two helium nuclei can come together in stars to form the unstable nucleus of the isotope beryllium 8, which occasionally before it has a chance to fission into two helium nuclei absorbs yet another helium nucleus and forms a nucleus of carbon. However, as emphasized in 1954 by Fred Hoyke, in order for this process to account for the observed cosmic abundance of carbon, there must be a state of the carbon nucleus that has an energy that gives it an anomalously large probability of being formed in the collison of a helium nucleus and a nucleus of beryllium 8. (Precisely such a state was subsequently found by experimenters working with Hoyle.) Once carbon is formed in stars, there is no obstacle to building up all the heavier elements, including those like oxygen and nitrogen that are necessary for known forms of life. But in order for this to work, the energy of this state of the carbon nucleus must be very close to the energy of a nucleus of beryllium 8 plus the energy of a helium nucleus. If the energy of this state of the carbon nucleus were too large or too small, then little carbon or heavier elements would be formed in stars, and with only hydrogen and helium there would be no way that life could arise. The energies of nuclear states depend in a complicated way on all the constants of physics, such as the masses and electric charges of the different types of elementary particles. 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