The Tao is very good, and it is very good. The name is famous, and the name is not very famous.

I think, therefore I am.

Empiricism and rationalism.

Mizukawa was talking, and the three of them were listening. Then he continued: "I think everyone is familiar with this. We all know that we're talking about physics, and I'm talking about theoretical physics. In the history of science, philosophy is important. It has been said that philosophy is the mother of science. In fact, it is. At the beginning, all intellectual activity was called philosophy, and it was only later that physics was separated from philosophy. So, the question is, does physics now, more precisely, theoretical physics, need philosophy? What do you think about this?

Liuzi Feng came and said: Although philosophy has contributed to mankind, time has passed. Nowadays, theoretical physics is developing rapidly, and it is clear that philosophy cannot play a role in theoretical physics. However, it is okay to exercise the mind with philosophical theories.

Margarita's eyes widened with anger, and her expression was very complicated. Anyone can see her anger, and know that she is about to vent all the anger in her heart. I saw her say: Isn't materialism the core of science? Without philosophy, how can there be materialism? Without materialism, how can there be science? It is true that physics in science today is developing so rapidly that it does not seem to need philosophy. Is that really the case? Gödel's incompleteness theorem arose precisely because of Gödel's insight into the loophole in empiricism, mainly to explain quanta. Without empiricism, the incompleteness theorem would not have been discovered. And we all know that this theorem is very important in quantum mechanics. There is a philosophical theory called solipsism in the world, which talks about the absolutization of the observer's perspective. I think Einstein must have been exposed to philosophy and solipsism during his studies. And this theory is the real source of his theory of relativity. The influence of philosophy on people is subtle and not easy to be revealed. However, theoretical physicists do be inspired by philosophy.

Dueñas laughed and said: If there is an end to philosophy, there will be an end to physics. If there is nothing in philosophy that can be studied, then it is said that Yin philosophy has found the ultimate truth of the universe. If so, physics will come to an end. Philosophical reflection provides two paths for theoretical physics. One is rationalism, that is, mathematics to guide physics. The other is empiricism, which is to accumulate more experience to conduct research. Einstein chose the first day, and the others chose the second one. In my opinion, philosophy does not play a role in theoretical physics. Because theoretical physicists do not get involved in philosophical debates. But it is precisely this debate that keeps theoretical physics rocking. If someone really establishes a unified philosophical theory system, it will be a groundbreaking event for physics.

What is Theoretical Physics? Come up with sound and bold conjectures. You might say there's experience to guide, and what's so scary? In fact, theoretical physics is not empirical. We all know that Albert Einstein proposed the theory of relativity, but he did not conduct any experiments and had no experience with it. It wasn't until many years later that his theory was proven right. How, then, should theoretical physicists come up with reasonable conjectures? This involves epistemology in philosophy, which is naturally related to philosophy. By studying epistemology, theoretical physicists can formulate conjectures that they think are reasonable.

Mizukawa Yone: I think philosophy must be believed, and it cannot be fully believed. The attitude of philosophical speculation is worth learning, but the arbitrariness of philosophical skepticism is undesirable. The above is just my personal opinion. When the bus ends, our discussion should be over. Let's gather here again in another new beginning.