Source: Speaking the Truth: Ecumenism, Liberation, and Black Theology (1986), pp. 7-8
“Our mistake is not that we take our theories too seriously, but that we do not take them seriously enough. It is always hard to realize that these numbers and equations we play with at our desks have something to do with the real world. …The most important thing accomplished by the three-degree radiation background in 1965 was to force us to take seriously the idea that there was an early universe.”
1977
The First Three Minutes (1977; second edition 1993)
Help us to complete the source, original and additional information
Steven Weinberg 46
American theoretical physicist 1933Related quotes

"Philosophy" (1929) as quoted by Nils-Eric Sahlin, The Philosophy of F. P. Ramsey (1990)

“The rational thing for a layperson to do is to take seriously the prevailing scientific theory.”
TED Talks

“What I want you to take seriously is what we have to do for the youth.”
1990s, Malcolm X Grassroots Movement, Atlanta (1992)

“The most important point is — and remains — not to take oneself seriously.”
Entry (1954)
Eric Hoffer and the Art of the Notebook (2005)
Context: The most important point is — and remains — not to take oneself seriously. There is no past, and, certainly, no future. There are but a few years — ten at the most. You pass your days as best you can, doing as little harm as possible. Let the desires be few and treat expectations as weeds. You read, scribble as the spirit moves you, hear some new music, see every week the few people you are attached to. Again: guard yourself, above all, against self-dramatization, a feeling of importance, and the sprouting of expectations.
“We need to the right thing. Take this seriously, not to verbalize about it, and not to talk.”
Source: Fort Portal Bishop calls for more environmental protection awareness https://www.ntv.co.ug/ug/news/national/fort-portal-bishop-calls-for-more-environmental-protection-awareness-3328498 (March 19, 2021)

On the Afghanistan cricket team, quoted on ‘’indiatoday’’, ICC World Twenty20: Sri Lanka not treating Afghanistan like minnows, says Angelo Mathews http://indiatoday.intoday.in/t20-world-cup-2016/story/icc-world-twenty20-sri-lanka-not-treating-afghanistan-like-minnows-says-angelo-mathews/1/621840.html, no date specified

As quoted in Simpson's Contemporary Quotations (1988) by James Beasley Simpson; also quoted in Running on Empty: Meditations for Indispensable Women (1992) by Ellen Sue Stern, p. 235
Paraphrased variants: The most important thing I have learned over the years is the difference between taking one's work seriously and taking one's self seriously. The first is imperative, and the second disastrous.
Take your work seriously, but never yourself.

“Do not take life too seriously – you will never get out of it alive.”
Source: A Thousand & One Epigrams: Selected from the Writings of Elbert Hubbard (1911), p. 74

Source: Other writings, Felix Frankfurter Reminisces (1960), P. 189.