“Listening will never get anyone in trouble but opening their mouth will.”
1979
Related quotes
February 27, 1963, page 47.
Official Report of Proceedings of the Hong Kong Legislative Council

Source: How Can I Keep from Singing: Pete Seeger (1981), p. 95

“I tell you, I have never opened anyone’s file ever.”
2014, "GhoshanaPatra with Narendra Modi", 2014
Context: I think this is a very dirty question [asked about Robert Vadra]. On one hand, no one is above the law. Suppose there is an allegation against Narendra Modi, and suppose tomorrow Narendra Modi becomes the Prime Minister, then should the case against him be initiated or not; just because I became the Prime Minister everything be closed. It cannot be like that, right? I am not above anyone. But I am talking about myself here, not the person you asked about, don’t mix it up, I am sure you won’t play the news trader gimmick. I have 14 years to experience of running a government. I tell you, I have never opened anyone’s file ever. It is my opinion that I got involved in all that then I would just have gotten more lost in it and would have been unable to do any good work. This is my personal opinion, I am not telling this as a government policy. I have separated myself from all this in 14 years and gave support only to new positive initiatives. I am not even aware of them, they are old things and must be in progress, the government knows it’s work. We come in for five years, if we start lugging this garbage [e. g., old corruption cases] around then when will we [have time to] do some good work[? ] So it is my opinion that my energies not be wasted in garbage. My energies should be directed towards good constructive work. Five years is very little time, if we get caught elsewhere then how will we do any good for the country. Rest [of] the law [e. g., the judiciary] should take its own course.

Original quote:
For my friend said that he opened his intellect as the sun opens the fans of a palm tree, opening for opening's sake, opening infinitely for ever. But I said that I opened my intellect as I opened my mouth, in order to shut it again on something solid. I was doing it at the moment. And as I truly pointed out, it would look uncommonly silly if I went on opening my mouth infinitely, for ever and ever.
The Extraordinary Cabman, one of many essays collected in Tremendous Trifles (1909)
Misattributed

“Never let anyone get anything on you.”
[Galvin, John T., The West Ender, The Mahatma Called the Shots, and Everyone Knew It: Part 2, 6, 5, December 1990, 9, http://thewestendmuseum.org/documents/1990_west_ender_vol6_no4.pdf]