“Life is like riding a bicycle. To keep your balance, you must keep moving.”
? Albert Einstein

“Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.”
? Arthur C. Clarke

“Why do you go away? So that you can come back. So that you can see the place you came from with new eyes and extra colors. And the people there see you differently, too. Coming back to where you started is not the same as never leaving.”
? Terry Pratchett, A Hat Full of Sky

“This soldier, I realized, must have had friends at home and in his regiment; yet he lay there deserted by all except his dog. I looked on, unmoved, at battles which decided the future of nations. Tearless, I had given orders which brought death to thousands. Yet here I was stirred, profoundly stirred, stirred to tears. And by what? By the grief of one dog.

Napoleon Bonaparte, on finding a dog beside the body of his dead master, licking his face and howling, on a moonlit field after a battle. Napoleon was haunted by this scene until his own death.”

“I've had a lot of worries in my life, most of which never happened.”
? Mark Twain

“Don't handicap your children by making their lives easy.”
? Robert A. Heinlein

“I'll be more enthusiastic about encouraging thinking outside the box when there's evidence of any thinking going on inside it.”
? Terry Pratchett

It is not the strongest of the species that survive, nor the most intelligent, but the one most responsive to change.
-Charles Darwin

"A ship is safe in a harbor, but that's not what ships are made for."

"If you can't explain it simply, you don't understand it well enough."
Albert Einstein

“There are three things all wise men fear: the sea in storm, a night with no moon, and the anger of a gentle man.”

“Luck is probability taken personally.”

"The shortest pencil is better than the longest memory".