Related:

• You can't start worrying about what's going to happen.
  You get spastic enough worrying about what's happening now. -- Lauren Bacall...
• There ain't no sense worrying about what you can control
  because if you can control it, there ain't no sense worrying about it, and there ain't no sense worrying about what you can't control, because if you can't control it, there ain't no sense worrying about it....
• You can destroy your now by worrying about tomorrow. -- Janis Jopli
• PRO: Never worrying about what you can hit on the highway.
  CON: Not being able to have other people worry about what you throw on the highway....
• Edelstein's Advice: Don't worry about what other people think of you -- they're too busy worrying about what you think of them.
• Don't worry over what other people are thinking about you.
  They're too busy worrying over what you are thinking about them....