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Richard Feynman talking with his childhood hero, physicist Paul Dirac, at the Relativity Conference in Warsaw, Poland, c. July 1962.

“When I was a kid, Dirac was my hero.” ~ Feynman

(Photo Courtesy: Caltech Images Collection / Caltech Archives)

“At a very early age, I made an assumption that a successful physicist only needs to know elementary mathematics. At a later time, with great regret, I realized that the assumption of mine was completely wrong.” ~ Albert Einstein

Near the end of his life, he expressed his thoughts to a friend.

Nobel laureate and renowned astrophysicist Subrahmanyan Chandrasekhar was known not only for his groundbreaking work in astrophysics but also for his extraordinary dedication to teaching.

Have a look at this THREAD: 👇🏻 (1/n)

(Photo Credit: the University of Chicago)

A century ago, in the summer of 1925, physicist Werner Heisenberg retreated to the island of Heligoland in the North Sea, seeking relief from severe hay fever. But what he found instead was a revolutionary idea. (1/n)

( © Werner Heisenberg - Archiv; Photograph by Fritz Hund.)

Albert Einstein’s life advice in a letter to his son Eduard on February 5, 1930:

“Life is like riding a bicycle. To keep your balance, you must keep moving.”

~ Einstein (1879-1955)

In the picture, #Einstein is riding a bicycle in Santa Barbara, USA in 1933.

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“Fall in love with some activity, and do it! Nobody ever figures out what life is all about, and it doesn't matter. Explore the world. Nearly everything is really interesting if you go into it deeply enough.” ~Feynman

(Source: Book - Surely You’re Joking, Mr. Feynman!)

(Image Credit: @caltech.edu)

In a letter dated April 13, 1901, Albert Einstein’s father, Hermann Einstein, wrote to the renowned chemist Wilhelm Ostwald. In a heartfelt and quietly dignified appeal, he shared his son's deep frustration and struggles, hoping to help him-without Albert's knowledge.

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A page from Einstein's Zürich notebook features tensors.

“Never give up on what you really want to do. The person with big dreams is more powerful than one with all the facts.”

~ Albert Einstein, 'The World As I See It'

The legendary physicist Hawking's PhD thesis, “Properties of Expanding Universes,” was originally submitted to the University of Cambridge in 1966 and has since gained worldwide acclaim. The thesis explores the mathematical models of the expanding universe within the context of general relativity.

Albert Einstein at the age of 19, during his university years at the ETH in Zürich, Switzerland. Little did he know, those very thoughts about light's behavior at that time would later lead him to his groundbreaking special theory of relativity.

(Photo Credit: ETH-Bibliothek)

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