KeenBrain

Quotes Authors Topics

KeenBrain

KeenBrain

Quotes Authors Topics Keywords Nationalities Professions

Login Sign up

Authors: All A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

All quotes by Claude Bernard

Share this page on

Observation is a passive science, experimentation an active science.

~Claude Bernard

Topics: Active Experimentation Observation Passive Science

Keywords: None

Suggest an edit

Cite the Source

Save to Favorites

Biography

Nationality: French

Type: Scientist

Born: July 12th, 1813

Died: February 10th, 1878

Links

Find Claude Bernard on Amazon

Related Authors

Alexis Carrel

Emmanuelle Charpentier

Yves Chauvin

Georges Cuvier

Bruno Latour

Charles Louis Alphonse Laveran

Jean-Marie Lehn

Louis Pasteur

Daniel Pauly

Jean Rostand

Popular Authors

Dale Carnegie Drake Mitch Hedberg James Joyce Audre Lorde Karl Marx Jerry Seinfeld Elie Wiesel

Change your beliefs...change your life.

Get a related quote or insight every day.

(it's 100% free)

Follow Us On

Today's Birthdays

1822 - Rutherford B. Hayes

1861 - Walter Rauschenbusch

1880 - Damon Runyon

1895 - Buster Keaton

1903 - Ernst Kaltenbrunner

1914 - Brendan Gill

1916 - George Sidney

1918 - Kenichi Fukui

1923 - Charlton Heston

1928 - Alvin Toffler

Birthdays on October 4th

All Birthdays

Popular Topics

Brainy Courage Environmental Funny Government Happiness Teacher Wedding

Site

Home Authors Topics Keywords Quote of the Day Professions Birthdays Nationalities Submit a Quotation

Company

About Careers Contact Advertise Privacy Terms

How To Reach Us

San Francisco, California

Contact

support@keenbrain.com

Follow Us On

How To Reach Us

San Francisco, California

Contact

support@keenbrain.com

Follow Us On

© 2026 KeenBrain, All Rights Reserved.

Loading...

Account activated successfully!

Sign in to Get Daily Tips from KeenBrain and become the best person you can be!

Dont't have a account? Create Account

Sign In with Facebook

Or

Sign In with Google

Or

Lost your password? Keep me logged in

Dont have an account? Create Account

Create a KeenBrain Account to Get Daily Tips! and become the best person you can be

Have a KeenBrain account? Sign in

Sign Up with Facebook

Or

Sign Up with Google

Or

Sign up for the Newsletter.

A Daily email of Tips for you!

Have an account? Sign In

Suggest an Edit

Do your bit in maintaining the most accurate and informative source of quotes in existence! If this quote needs to be updated (e.g incorrect information, spelling errors, additional topics or keywords needed), please let us know

Name*

Email*

Message*

CITE THIS SOURCE

Using the appropriate style guide, simply copy and paste the information below to add the citation to your bibliography.

American Psychological Association (APA):

Quote By KeenBrain. Retrieved October 4, 2026, from

Modern Language Association (MLA):

“Quote By ” KeenBrain. n.d. Sun. 4 October. 2026 from

Chicago Manual Style (CMS):

“Quote By ” KeenBrain. Accessed October 4, 2026.

Suggest an Edit

Do your bit in maintaining the most accurate and informative source of quotes in existence! If this quote needs to be updated (e.g incorrect information, spelling errors, additional topics or keywords needed), please let us know

Name*

Email*

Message*

CITE THIS SOURCE

Using the appropriate style guide, simply copy and paste the information below to add the citation to your bibliography.

American Psychological Association (APA):

Quote By Claude Bernard KeenBrain. Retrieved October 4, 2026, from

/quotes/quote/c/claude_bernard_392409">

Modern Language Association (MLA):

“Quote By Claude Bernard” KeenBrain. n.d. Sun. 4 October. 2026 from

/quotes/quote/c/claude_bernard_392409">

Chicago Manual Style (CMS):

“Quote By Claude Bernard” KeenBrain. Accessed October 4, 2026.

/quotes/quote/c/claude_bernard_392409">

Collect Quote

Please first Login to your account or Register