“The idea that as I walk in this direction my watch goes slightly slower and I am contracted in the direction of motion and my mass has increased slightly does not correspond to everyday experience. …the reason that it does not correspond to common sense is that we are not in the habit of traveling close to the speed of light. We may one day be in that habit, and then the Lorentz transformations will be natural, intuitive.”

—  Carl Sagan

The Varieties of Scientific Experience: A Personal View of the Search for God (2006)

Adopted from Wikiquote. Last update June 3, 2021. History

Help us to complete the source, original and additional information

Do you have more details about the quote "The idea that as I walk in this direction my watch goes slightly slower and I am contracted in the direction of motion …" by Carl Sagan?
Carl Sagan photo
Carl Sagan 365
American astrophysicist, cosmologist, author and science ed… 1934–1996

Related quotes

Epictetus photo

“Every habit and faculty is preserved and increased by correspondent actions,—as the habit of walking, by walking; of running, by running.”

Epictetus (50–138) philosopher from Ancient Greece

How the Semblances of Things are to be combated, Chap. xviii.
Bartlett's Familiar Quotations, 10th ed. (1919)

“For the record: Though our professional circles did cross-over slightly… I never had the honour or pleasure of meeting Michael Jackson personally, nor did we ever correspond on matters of our professions, personal lives or faiths. … My approach to faith does not include concepts of "conversion/reversion" or "propagation", so the very idea that I would have even tried to "convert" Mr. Jackson (or anyone else for that matter) to my spiritual perspective, is silly.”

Dawud Wharnsby (1972) Canadian musician

On rumors that he, Yusuf Islam (aka Cat Stevens), and others had convinced Michael Jackson to convert to Islam, in a statement on his blog site in "The Passing of Michael Jackson: Enter Into Peace" (26 June 2009); Yusuf Islam also repudiated the rumors at his site http://www.yusufislam.com/faq/did-yusuf-help-jackson-become/: "Contrary to persistent press rumours, I was not at any kind of conversion ceremony for Michael Jackson. Nor, I believe, was Dawud Wharnsby or any of the others mentioned in connection with the story."

Epictetus photo

“Habits and faculties are necessarily affected by the corresponding acts”

Epictetus (50–138) philosopher from Ancient Greece

Golden Sayings of Epictetus
Context: If you have given way to anger, be sure that over and above the evil involved therein, you have strengthened the habit, and added fuel to the fire. If overcome by a temptation of the flesh, do not reckon it a single defeat, but that you have also strengthened your dissolute habits. Habits and faculties are necessarily affected by the corresponding acts... One who has had fever, even when it has left him, is not in the same condition of health as before, unless indeed his cure is complete. Something of the same sort is true also of diseases of the mind. Behind, there remains a legacy of traces and of blisters: and unless these are effectually erased, subsequent blows on the same spot will produce no longer mere blisters, but sores. If you do not wish to be prone to anger, do not feed the habit; give it nothing which may tend to its increase. At first, keep quiet and count the days when you were not angry: 'I used to be angry every day, then every other day: next every two, next every three days!' and if you succeed in passing thirty days, sacrifice to the Gods in thanksgiving. (75).

Ivar Giaever photo
Albert Jay Nock photo

“In general I wish we were in the habit of conveying our meanings in plain explicit terms rather than by indirection and by euphemism, as we so regularly do. My point is that habitual indirection in speech supports and stimulates a habit of indirection in thought; and this habit, if not pretty closely watched, runs off into intellectual dishonesty.”

Albert Jay Nock (1870–1945) American journalist

Free Speech and Plain Language (1936)
Context: In general I wish we were in the habit of conveying our meanings in plain explicit terms rather than by indirection and by euphemism, as we so regularly do. My point is that habitual indirection in speech supports and stimulates a habit of indirection in thought; and this habit, if not pretty closely watched, runs off into intellectual dishonesty.
The English language is of course against us. Its vocabulary is so large, it is so rich in synonyms, it lends itself so easily and naturally to paraphrase, that one gets up a great facility with indirection almost without knowing it. Our common speech bristles with mere indirect intimations of what we are driving at; and as for euphemisms, they have so far corrupted our vernacular as to afflict us with a chronic, mawkish and self-conscious sentimentalism which violently resents the plain English name of the realities that these euphemisms intimate. This is bad; the upshot of our willingness to accept a reality, provided we do not hear it named, or provided we ourselves are not obliged to name it, leads us to accept many realities that we ought not to accept. It leads to many and serious moral misjudgments of both facts and persons; in other words, it leads straight into a profound intellectual dishonesty.

African Spir photo
Alec Waugh photo

“I am prepared to believe that a dry martini slightly impairs the palate, but think what it does for the soul.”

Alec Waugh (1898–1981) British novelist

In Praise of Wine (1959).

Paulo Coelho photo

“Sadness does not last forever when we walk in the direction of that which we always desired.”

Variant: Sorrows do not last forever when we are journeying towards the thing we have always wanted.
Source: The Fifth Mountain

Gillian Anderson photo

“Directing was a transformative experience for me, one that I really enjoyed.”

Gillian Anderson (1968) American-British film, television and theatre actress, activist and writer

Wales on Sunday staff (December 2, 2001) "Wales on Sunday: stargazing", Wales on Sunday.
2000s

“The idea that theorems follow from the postulates does not correspond to simple observation.”

Richard Hamming (1915–1998) American mathematician and information theorist

The Unreasonable Effectiveness of Mathematics (1980)
Context: The idea that theorems follow from the postulates does not correspond to simple observation. If the Pythagorean theorem were found to not follow from the postulates, we would again search for a way to alter the postulates until it was true. Euclid's postulates came from the Pythagorean theorem, not the other way around.

Related topics