Samuel Butler (1835–1902) novelist
Scientists
The Note-Books of Samuel Butler (1912), Part XIV - Higgledy-Piggledy
Found in Pushkin's. The Captain's Daughter and Other Stories. English edition by Random House LLC. 2013. p. 139
As quoted by Joseph Frank in Dostoevsky: A Writer in His Time (2009). Princeton University Press, p. 203.
Samuel Butler (1835–1902) novelist
Scientists
The Note-Books of Samuel Butler (1912), Part XIV - Higgledy-Piggledy
“Those people who think they know everything are a great annoyance to those of us who do.”
Isaac Asimov (1920–1992) American writer and professor of biochemistry at Boston University, known for his works of science fiction …
As quoted in The Mammoth Book of Zingers, Quips, and One-Liners (2004) edited by Geoff Tibballs, p. 299
General sources
“People who think they know everything are annoying to those of us who do.”
Jill Shalvis (1963) American writer
Source: Get A Clue
Paddy Chayefsky (1923–1981) American playwright, screenwriter and novelist
Lt. Cmdr. Charles E. Madison.
The Americanization of Emily (1964)
Context: You've done the morally right thing. God save us all from people who do the morally right thing. It's always the rest of us who get broken in half.
Ibn Hazm (994–1064) Arab theologian
ibn Hazm's style of ending a work, in Salim al-Hassani, Ibn Hazm’s Philosophy and Thoughts on Science https://muslimheritage.com/ibn-hazm-philosophy-and-science/#_ftnref23
“It is those who can see the invisible that can do the impossible.”
Steve Maraboli (1975)
Source: Life, the Truth, and Being Free (2010), p. 93
“Those who do not think that employment is systemic slavery are either blind or employed.”
Nassim Nicholas Taleb book The Bed of Procrustes: Philosophical and Practical Aphorisms
Source: The Bed of Procrustes: Philosophical and Practical Aphorisms (2010), p. 30
Rita Levi-Montalcini (1909–2012) Italian neurologist
Source: https://www.frasicelebri.it/frasi-di/rita-levi-montalcini/.