“Does the same as the system call of that name. If you don't know what it does, don't worry about it.”
In the perl man page regarding chroot(2).
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Larry Wall 294
American computer programmer and author, creator of Perl 1954Related quotes

“I don't know, man; don't worry about it.”
from "Broad Street Scientific," 2012 edition, quoted posthumously

Attributed

At a rally in Ashburn, Virginia. http://www.politico.com/story/2016/08/trump-kicks-out-baby-rally-226566 (August 2, 2016)
2010s, 2016, August

“Don't worry about failures, worry about the chances you miss when you don't even try.”
Source: Chicken Soup for the Soul

Promoting "Crocker's Rules" at SL4 (c. 2000) http://www.sl4.org/crocker.html
Context: Declaring yourself to be operating by "Crocker's Rules" means that other people are allowed to optimize their messages for information, not for being nice to you. Crocker's Rules means that you have accepted full responsibility for the operation of your own mind — if you're offended, it's your fault. Anyone is allowed to call you a moron and claim to be doing you a favor. (Which, in point of fact, they would be. One of the big problems with this culture is that everyone's afraid to tell you you're wrong, or they think they have to dance around it.) Two people using Crocker's Rules should be able to communicate all relevant information in the minimum amount of time, without paraphrasing or social formatting. Obviously, don't declare yourself to be operating by Crocker's Rules unless you have that kind of mental discipline.
Note that Crocker's Rules does not mean you can insult people; it means that other people don't have to worry about whether they are insulting you. Crocker's Rules are a discipline, not a privilege. Furthermore, taking advantage of Crocker's Rules does not imply reciprocity. How could it? Crocker's Rules are something you do for yourself, to maximize information received — not something you grit your teeth over and do as a favor.