“Don't say you don't have enough time. You have exactly the same number of hours per day that were given to Helen Keller, Pasteur, Michaelangelo, Mother Teresa, Leonardo da Vinci, Thomas Jefferson, and Albert Einstein.”
Help us to complete the source, original and additional information
H. Jackson Brown, Jr. 54
American writer 1940Related quotes

Martson, Pitkin, The Art of Sound Pictures (1929), p. vi; Jill Lepore, The Secret History of Wonder Woman (2014), p. 140.

Quote from Entretiens avec Salvador Dali, Alain Bosquet, 1966; as cited in The shameful life of Salvador Dali, Ian Gibson, New York / London, Norton & Co, 1997
Quotes of Salvador Dali, 1961 - 1970
11.2, "The Renaissance", p. 336
The Forgotten Revolution: How Science Was Born in 300 BC and Why It Had to Be Reborn (2004)

As quoted in "Koufax" https://www.washingtonpost.com/archive/politics/1979/03/21/koufax/3139f66f-996a-485f-8cce-8f7671152136/?utm_term=.174cfc71ede2) by Thomas Boswell, in The Washington Post (March 21, 1979)

As quoted in "Nate Diaz discusses win over Conor McGregor" https://www.youtube.com/watch?v=hg6NkqFPOyY (5 March 2016), UFC on FOX, FOX

“You don't have to be a mathematician to have a feel for numbers.”
Statement of 2006, partly cited in Stop Making Sense: Music from the Perspective of the Real (2015) by Scott Wilson, p. 117
2000s
Context: You don't have to be a mathematician to have a feel for numbers. A movie, by the way, was made — sort of a small-scale offbeat movie — called Pi recently. I think it starts off with a big string of digits running across the screen, and then there are people who get concerned with various things, and in the end this Bible code idea comes up. And that ties in with numbers, so the relation to numbers is not necessarily scientific, and even when I was mentally disturbed, I had a lot of interest in numbers.

“If you don't have time to read, you don't have the time (or the tools) to write. Simple as that.”
Variant: Can I be blunt on this subject? If you don't have time to read, you don't have the time (or the tools) to write. Simple as that.
Source: On Writing: A Memoir of the Craft