Related:

• Those who can, do. Those can't, teach. Those who destroy everything they touch, become high school counselors.
• Let everything be allowed to do what it naturally does, so that its nature will be satisfied.
  -- Chuang Tzu...
• There are two kinds of men who never amount to much
  hose who cannot do what they are told, and those who can do nothing else. -- Cyrus Curti...
• H. L. Mencken's Law Those who can -- do. Those who cannot -- teach.
  Those who cannot teach -- administrate. (Martin's extension)...
• There are three kinds of researchers: Those who can do math and those who cannot.
  -- Tom Rusk Vickery...
• I can understand how they wouldn't let in those wild jungle apes, but what about those really smart ones who live among us who rollerskate and smoke cigars?
  -- Homer Simpson, on Heaven The Telltale Head...
• Do not let what you cannot do interfere with what you can do. -- John Woode
• Those who can, do. Those who can't, teach. -- H. L.
  Mencken's Law Those who cannot teach -- administrate. -- Martin's Extensio...
• H. L. Mencken's Law: Those who can -- do. Those who can't -- teach.
  Martin's Extension: Those who cannot teach -- administrate....