Here are some wise words from famous Leos who made more than one giant leap for humankind.
"I believe every human has a finite number of heartbeats. I don't intend to waste any of mine." - Neil Armstrong
"Adventure is worthwhile in itself." - Amelia Earhart
"If we all worked on the assumption that what is accepted as true is really true, there would be little hope of advance." - Orville Wright
"It is the lives we encounter that make life worth living." - Guy de Maupassant
"It's a shallow life that doesn't give a person a few scars." - Garrison Keillor