---
title: "1 Gravity Forces Quotes by 1 author"
description: "Browse 1 Gravity Forces quotes by 1 author. Discover the best Gravity Forces sayings and thoughts."
image: "https://sms4smile.com/quotes/i/2df/lee-smolin-4171_first-time_in-fact-the-particle-antiparticle-annihi_228604.png"
---

> [“In fact, the particle-antiparticle annihilation and the closing of the string is necessary, if the theory is to be consistent with relativity, meaning the theory is required to have both open and closed strings. But this means it must include…](https://sms4smile.com/quotes/lee-smolin/in-fact-the-particle-antiparticle-annihilation-and-the-closing-of-the/)

[Lee Smolin](https://sms4smile.com/quotes/author/lee-smolin/)

[Image](https://sms4smile.com/quotes/i/2df/lee-smolin-4171_first-time_in-fact-the-particle-antiparticle-annihi_228604.png)

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