Erwin Schrödinger

Physics Austrian 1887 – 1961 550 quotes

Developed wave equation for quantum mechanics

Most quoted

"One can even set up quite ridiculous cases. Imagine an experiment that will not be carried out until the year 2000, in which a cat is penned up in a steel chamber, along with the following device (which must be secured against direct interference by the cat): at the heart of a Geiger counter, there is a tiny bit of radioactive substance, so small that perhaps in the course of the hour one of the atoms decays, but also, with equal probability, perhaps none; if it happens, the counter tube discharges and through a relay releases a hammer which shatters a small flask of hydrocyanic acid. If one has left this entire system to itself for an hour, one would say that the cat still lives if meanwhile no atom has decayed. The psi-function of the entire system would express this by having in it the living and dead cat (pardon the expression) mixed or smeared out in equal parts."

— from Die gegenwärtige Situation in der Quantenmechanik, 1935

"The scientific picture of the real world around me is very deficient. It gives a lot of factual information, puts all our experience in a magnificently consistent order, but it is ghastly silent about all and sundry that is really close to our heart, that really matters to us. It cannot tell us a word about red and blue, bitter and sweet, physical pain and physical delight; it knows nothing of beautiful and ugly, good and bad, God and eternity. Science sometimes pretends to answer questions in these domains, but the answers are very often so silly that we are not inclined to take them seriously."

— from Mind and Matter

"This life of yours which you are living is not merely a piece of the entire existence, but is in a certain sense the whole; only this whole is not so constituted that it can be surveyed in a single glance. This, as we know, is what the Brahmins express in that sacred, mystic formula. Tat tvam asi—this is you. Or, again, in such words as ‘I am in the east and in the west, above and below, I am this entire world.’"

— from My View of the World

All quotes by Erwin Schrödinger (550)

The world is a construct of our sensations, perceptions, memories.

My View of the World 1956

Vedanta teaches that consciousness is singular, one, everywhere and in all.

My View of the World 1961

The total number of minds in the universe is one.

My View of the World 1961

In itself, the insight is not new. Ancient Eastern wisdom has been stating it from time immemorial: all is one.

My View of the World 1961

The multiplicity is only apparent. This is the doctrine of the Upanishads.

My View of the World 1961

My body functions as a single whole, the single individual I am.

My View of the World 1956

I consider it likely that our present day physicists feel the need to draw a distinction between the two.

Mind and Matter 1958

The world is given only once.

My View of the World 1956

Subject and object are only one.

My View of the World 1956

The barrier between them cannot be said to have ever opened, for it has never existed.

My View of the World 1956

The plurality that we perceive is only an appearance; it is not real.

My View of the World 1961

The universe is a single living organism.

Personal reflection

Physics tries to discover the pattern in nature.

Nature and the Greeks 1954

Science cannot tell us why there is something rather than nothing.

Interview

The aim of science is to seek the simplest explanations of complex facts.

Attributed

Quantum mechanics has taught us that the old idea of reality is wrong.

Paper 1935

The observer is part of the system.

Die gegenwärtige Situation in der Quantenmechanik 1935

It is the observer who brings the system to life.

Attributed remark

The laws of nature are not inviolable.

Personal reflection

Biology is closer to certain other natural sciences than to physics.

What is Life? 1944