Source: The Dear One
“Worry less about what other people think about you, and more about what you think about them.”
“If you declare Crocker's Rules, other people don't need to worry about being tactful to you.”
Promoting "Crocker's Rules" in "An Introduction to SL4" (2002) http://www.sl4.org/intro.html
Context: If you declare Crocker's Rules, other people don't need to worry about being tactful to you. (You still need to worry about being tactful to them — Crocker's Rules only work one way.)
“Successful people never worry about what others are doing.”
Alleged source in Plato unknown. Earliest occurrence to have been located is a Tweet from 2011 https://twitter.com/ochocinco/status/93332058864238592.
Disputed
“I can't tell you how much time is spent worrying about decisions that don't matter.”
A Conversation with Ward Cunningham (2003), Collective Ownership of Code and Text
Context: I can't tell you how much time is spent worrying about decisions that don't matter. To just be able to make a decision and see what happens is tremendously empowering, but that means you have to set up the situation such that when something does go wrong, you can fix it.
“Don't worry about failures, worry about the chances you miss when you don't even try.”
Source: Chicken Soup for the Soul
“Don't worry about anything. Just do what you can and be the best you can be.”
In response to David Winer http://scripting.wordpress.com/2006/12/21/scripting-news-for-12212006/
https://www.youtube.com/watch?v=ib8YG-WDZtM: 6 minutes 08 seconds into the video
