Ihave eyes like a bullfrog, a neck like anostrich and long, limp hair.You just have to be good to survive with that equipment.

-Davis, Bette originally Ruth Elizabeth Davis
Attributed.

Philip is a living example of natural selection. He was as fitted to survive in this modern world as a tapeworm in an intestine.

-Golding, Sir William (Gerald)
  Free Fall, ch.2.

Can capitalism survive? No, I do not think it can.

-Schumpeter,Joseph Alois
  Capitalism, Socialism, and Democracy, p.61.

It cannot but happen†that those will survive whose functions happen to be most nearly in equilibrium with the modified aggregate of external forces† This survival of the fittest implies multiplication of the fittest.

-Spencer, Herbert
  Principles of Biology, pt.3, ch.12, sect.164.

To eat, to survive and to have a good coat.

-Stanwyck, Barbara originally Ruby Stevens
  Her three goals in life, recalled on receiving theAmerican Film Institute LifeAchievement Award. Reported in the NewYork Times,11 Apr.

In1945 we did much more than draft an international agreement among 50 nations.Weset downonpaper the only principles that will enable civilized human life to continue to survive on this globe.

-Truman, Harry S
  On the10th anniversary of the United Nations, 24 Jun.