An organism at war with itself is doomed. - Carl Sagan

Evolution often uses this strategy. Indeed, the standard evolutionary practice of increasing the amount of genetic information as organisms increase in complexity is accomplished by doubling part of the genetic material and then allowing the slow specialization of function of the redundant set.

We, the nuclear hostages - all the peoples of the Earth - must educate ourselves about conventional and nuclear warfare. Then we must educate our governments. We must learn the science and technology that provide the only conceivable tools for our survival. We must be willing to challenge courageously the conventional social, political, economic and religious wisdom. We must make every effort to understand that our fellow humans, all over the world, are human. Of course, such steps are difficult. Bus as Einstein many times replied when his suggestions were rejected as impractical or as inconsistent with ‘human nature’: What is the alternative?

"Scientists often say "My position is mistaken." I cannot recall the last time something like that happened in politics or religion."