It will not be we who reach alpha centuri and other nearby star systems, it will be a spieces very like us, but with more of our strengths and fewer of our weaknesses; more confident, far-seeing and wise. For all our failures, despite our flaws, we, humans are capable of greatness.
Our remote descendants, will be unified by their common heritage, by their regard for their home planet, and by the knowledge that whatever other life there may be, the only humans in all the universe came from earth.They will gaze up and strain to find the blue dot in their skies. They will marvel at how vulnerable the prepository of all our potential once was. How periless our infancy. How humble our beginnings. How many rivers we had to cross before we found our way. -Niel Degrasse Tyson