The biggest risk is not taking any risk... In a world that changing really quickly, the only strategy that is guaranteed to fail is not taking risks. Mark Zuckerberg
You must accept that you might fail; then, if you do your best and still don't win, at least you can be satisfied that you've tried. If you don't accept failure as a possibility, you don't set high goals, you don't branch out, you don't try - you don't take the risk. Rosalynn Carter
Normally, in the presence of radiation, communication links fail. But with autonomous robots, you don't need communications. Vijay Kumar
Take chances, make mistakes. That's how you grow. Pain nourishes your courage. You have to fail in order to practice being brave. Mary Tyler Moore
Your competition is not other people but the time you kill, the ill will you create, the knowledge you neglect to learn, the connections you fail to build, the health you sacrifice along the path, your inability to generate ideas, the people around you who don't support and love your efforts, and whatever god you curse for your bad luck. James Altucher