Dealing with bureaucracy is like trying to nail jelly to the wall.
- John F. Kennedy
Delay is the deadliest form of denial.
- C. Northcote Parkinson
Discipline is the refining fire by which talent becomes ability.
Discipline yourself and others won't need to.
- John Wooden
Discovery consists in seeing what everyone else has seen and thinking what no one else has thought.
- Albert Szent-Gyorgyi
Discretion is putting two and two together and keeping your mouth shut.
Unknown
Do not follow where the path may lead. Go instead where there is no path and leave a trail.
- Ralph Waldo Emerson
Do not let what you can't do interfere with what you can do.
- John Wooden
Do not wait; the time will never be "just right". Start where you stand, and work with whatever tools you may have at your command, and better tools will be found as you go along.
- Napoleon Hill
Do the right thing even if it means dying like a dog when no one's there to see you do it.
- Admiral James B. Stockdale
Do what is right because it is right; and leave it alone.
- Chiune Sugihara
Don't ask yourself what the world needs. Ask yourself what makes you come alive, and then go and do that. Because what the world needs is people who have come alive.
- Harold Whitman
Don't find fault. Find a remedy.
- Henry Ford
Don't let making a living interfere with making a life.
- John Wooden
Don't use words too big for the subject. Don't say "infinitely" when you mean "very"; otherwise you'll have no word left when you want to talk about something really infinite.
- C. S. Lewis
Don't worry that children never listen to you; worry that they are always watching you.
- Robert Fulghum