Richard P. Feynman

The philosophical question before us is, when we make an observation of our track in the past, does the result of our observation become real in the same sense that the final state would be defined if an outside observer were to make the observation?

American Physicist

Arthur Conan Doyle

As Cuvier could correctly describe a whole animal by the contemplation of a single bone, so the observer who has thoroughly understood one link in a series of incidents should be able to accurately state all the other ones, both before and after.

British Writer

Sonia Sotomayor

I was a keen observer and listener. I picked up on clues. I figured things out logically, and I enjoyed puzzles. I loved the clear, focused feeling that came when I concentrated on solving a problem and everything else faded out.

American Judge

Alexander Pope

A person who is too nice an observer of the business of the crowd, like one who is too curious in observing the labor of bees, will often be stung for his curiosity.

English Poet

Bertrand Russell

The observer, when he seems to himself to be observing a stone, is really, if physics is to be believed, observing the effects of the stone upon himself.

British Philosopher

Deepak Chopra

The physical world, including our bodies, is a response of the observer. We create our bodies as we create the experience of our world.

American Speaker

Galileo Galilei

I give infinite thanks to God, who has been pleased to make me the first observer of marvelous things.

Italian Scientist

Noam Chomsky

If there was an observer on Mars, they would probably be amazed that we have survived this long.

American Activist

Stephen Hawking

There's no way to remove the observer - us - from our perceptions of the world.

English Physicist

Pierre Teilhard de Chardin

The universe as we know it is a joint product of the observer and the observed.

French Philosopher

Implies the observer is attentive and notices details others might miss.

Observation Skills

An observer watches but does not influence the situation.

Not Active

Highlights the passive role of an observer in meetings or classes.

Non-participating Role

Observers may witness discussions normally closed to the public.

Privileged Access

Refers to systematic gathering of information in scientific contexts.

Data Collection

An observer's reports should be unbiased and based on evidence.

Objective Reporting

In computing, an observer is part of a design pattern for managing updates.

Software Design

An observer in computing keeps track of changes without manual checks.

Automatic Notifications

 who learn a secondary language by filtering it through their primary language. Because all types of bilingual people can become fully proficient in a language regardless of accent or pronunciation, the difference may not be apparent to a casual observer. But recent advances in brain imaging technology

The benefits of a...

 and one of the main ones is that the simple act of observing something can change it. This principle is called observer interference. The answers participants give are likely to be affected by the presence of the researchers, social pressure from the rest of the group,

How do focus groups...

 Canoe building involved the whole community, bringing together the navigators, canoe builders, priests, chanters, and hula dancers. Navigators were keen observers of the natural world. They were abundantly familiar with trade wind-generated ocean swells,

How did Polynesian...

 that the picture changes dramatically. As it overtakes sound waves it has emitted, while generating new ones from its current position, the waves are forced together, forming a Mach cone. No sound is heard as it approaches an observer

The sonic boom problem -...

 the clouds parted. Einstein realized that the contradiction could be resolved if it was the speed of light that remained constant, regardless of reference frame, while both time and space were relative to the observer.

Einstein's miracle year...

 So, a six-year-old child. Okay? Now, what does all this mean? What this suggests is that no one is an outside observer of nature, okay? We're not defined by our central properties, by the bits that make us up.

Optical illusions show...

 it was as observers so this remains a symbolic engagement listening to refugees and consulting them is far removed from meaningful engagement

The importance of...

 food. It's really tough for you as an observer to see an animal going through so much stress and pain and overwhelming exertion,

Orcas Kill, But Not Just...

 observer of dinner today you know what addictive a lot of inner product of I