Curiosity is a necessary part of survival . Nick Woolf Emeritus professor of astronomy University of Arizona https://www.as.arizona.edu/people/faculty/neville-j-woolfhttp://www.starmen.space/astronomershttp://www.skyatnightmagazine.com/blog/iain-todd/film-review-star-men
Carl Sagan
Somewhere, something incredible is waiting to be known Carl Sagan
Joao Magueijo
You never have your best ideas in your office. Joao Magueijo http://en.m.wikipedia.org/wiki/Jo%C3%A3o_Magueijo