a rising tide lifts all boats

• a rising tide floats all boats

a rising tide lifts all boats

1. A truly good outcome benefits all.
   • 2000, David Reynolds, chapter 17, in One World Divisible, W. W. Norton, →ISBN, page 653:

     Whereas in the 1960s, incomes rose as the economy grew—to use President Kennedy's phrase, “a rising tide lifts all the boats”—this no longer applied in the 1980s.

   • 2005 June 21, Leslie Feinberg, “Pre-Stonewall gay organizing”, in Workers World‎:

     Hay and other early gay rights activists were influenced by the Black civil rights movement in a broader sense, too. The rising tide of African American organizing raised all boats, and the hopes of all whose dreams had been deferred.