If at first you don't succeed, Try, try again.

-Hickson,William Eward
'Try and Try Again'.

Worldly wisdom teaches us that it is better for the reputation to fail conventionally than to succeed unconventionally.

-Keynes (of Tilton),John Maynard, 1st Baron
  The General Theory of Employment, Interest and Money.

It is not enough to succeed.Others must fail.

-Vidal, Gore originally Eugene Luther Vidal,Jr
Quoted in G Irvine Antipanegyric forTom Driberg (1976).

For us, it is all right if the talks succeed; and it is all right if they fail.

-Zhou Enlai or  Chou En-Lai
On President Nixon's visit, 5 Oct.