Related:

• Try a thing you haven't done three times. Once, to get over the fear of doing it.
  Twice, to learn how to do it. And a third time, to figure out whether you like it or not....
• Few people think more than two or three times a yea
  I have made an international reputation for myself by thinking once or twice a week....
• Once is happenstance, Twice is coincidence, Three times is enemy action. -- Auric Goldfinge
• I 'll make assurance double sure, And take a bond of fate.
  -- William Shakespeare (1564-1616), Macbeth -- Act iv, Sc. 1...
• People don't make the same mistake twice -- they make it three times, four times...
• People don't make the same mistake twice, they make it three times, four time, or five times.
• People don't usually make the same mistake twice -- they make it three times, four time, five times.
  .....
• Try everything once... Try the fun stuff twice...
• I had amnesia once or twice. -- Steven Wrigh