Episode Seven – Bohr’s Philosophy


Today we discuss the philosophy of Niels Bohr and some of its influences, such as pragmatism. We will explore these by looking at some Bohr quotes.

Episode Transcript

[Please note that this may not exactly match the audio. However, there should be no significant differences.].

Welcome to episode seven of the Metaphysics of Physics podcast. I am Ashna, your host and guide through the hallowed halls of the philosophy of science. Thanks for tuning in!

With this show, we are fighting for a more rational world, mostly by looking through the lens of the philosophy of science.  We raise awareness of issues within the philosophy of science and present alternative and rational approaches.

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Today we will be taking a look at the philosophy of Niels Bohr.  We will be making the case for three central elements of Bohr’s philosophy and we will use quotes to show that he did indeed hold to these tenets.

If you are interested in further readings, links to the sources from which many of these quotes are taken have been provided in the show notes.

So, what are these three central tenets of Bohr’s philosophy?

Firstly, the rejection of reality and objective facts.

Secondly, a rejection of the Law of Identity.

And thirdly,  that Bohr ascribed to a kind of acausality, that is a rejection of causality. This might seem a consequence of the second and arguably it is. If you reject the Law of Identity, it is no surprise that you might also reject causality.

What do these tenets point to? Which philosophical influence or influences might Bohr then be said to have suffered from?

Let’s begin by looking at his background.

Bohr’s Background

Bohr is considered one of the foremost and founding figures of modern physics.  He is best known for his contributions to quantum theory and his work on the structure of atoms, for which he won the Nobel Prize in physics in 1922.

He was born in 1885 and died 1962, aged 77.  He became interested in physics at a young age and acquired a doctorate in physics in 1911 from the University of Copenhagen, at the relatively young age of 26.

It should be noted that his father, Christian Bohr, was a friend of the well-known philosopher Harald Høffding.  Christian would invite Høffding to the Bohr household and Niels would observe and take part in many philosophical discussions with this philosopher.

Harald Høffding

Harald Høffding, Bohr’s philosophical mentor.

Høffding was heavily influenced by Kant and later became a positivist.  Positivism holds that knowledge begins with sensory experience and Bohr most certainly agreed with this.

These early experiences with Høffding seems to have sparked an intense interest in philosophy. Furthermore, Høffding was not his only philosophical influence.

Bohr was a philosophical eclectic and was influenced by various other philosophers, such as the pragmatist William James.

As we shall see, the Neo-Kantian philosophies he was exposed to influenced his physics for the worst.


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