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)

Profound is the entropy of life.

What is Life? 1944

Interesting is the observer effect.

Paper 1935

The list could go on, but the essence is one.

Closing thought

The world is given to me only once, not one existing and one perceived. Subject and object are only one. The barrier between them cannot be said to have broken down as a result of recent experience in the physical sciences, because that barrier does not exist.

Mind and Matter 1925

If we were to be quite honest, we would have to admit that we are not really interested in the 'thing-in-itself' but only in the 'thing-for-us.'

Mind and Matter 1925

The task is not so much to see what no one has yet seen; but to think what nobody has yet thought, about that which everybody sees.

What is Life?

The living organism is a system of which every part is a means and an end.

What is Life? 1944

The most amazing thing about the universe is that it is comprehensible.

Various lectures and writings

The world is a construct of our sensations, perceptions, memories. It is convenient to regard it as existing objectively. But to do so is not to say that it exists independently of us.

Mind and Matter 1925

The world is a collection of facts, not of things.

Mind and Matter 1925

The world is a symphony of vibrations.

Various lectures and writings

The world is a dream, a dream that we all dream together.

Various lectures and writings

The world is a mirror, reflecting back to us what we are.

Various lectures and writings

The world is a stage, and we are merely players.

Various lectures and writings

The world is a book, and those who do not travel read only one page.

Various lectures and writings

The world is a puzzle, and we are trying to put the pieces together.

Various lectures and writings

The world is a mystery, and we are trying to solve it.

Various lectures and writings

The world is a miracle, and we are trying to understand it.

Various lectures and writings

The world is a gift, and we are trying to appreciate it.

Various lectures and writings

The world is a challenge, and we are trying to overcome it.

Various lectures and writings