Sarah

“Must be a yearning deep in the human heart to stop the people from doing as they please. Rules, laws--always for other fellow. A murky part of us, something we had before we came down out of trees, and failed to shuck when we stood up. Because not one of those people said: "Please pass this so that I won't be able to do something I know I should stop." Nyet, tovarishchee, was always something they hated to see neighbors doing. Stop them "for their own good"--not because speaker claimed to be harmed by it.”
― Robert A. Heinlein, The Moon Is a Harsh Mistress

“In his blackest hours, Stone doubted the utility of all thought, and all intelligence. There were times he envied the laboratory rats he worked with; their brains were so simple. Certainly, they did not have the intelligence to destroy themselves; that was a peculiar invention of man.”
― Michael Crichton, The Andromeda Strain

“What do I advise? Forget it all. Don't be afraid. Do what you get the most pleasure from. Is it to build a cloud chamber? Then go on doing things like that. Develop your talents wherever they may lead. Damn the torpedoes - full speed ahead!
If you have any talent,or any occupation that delights you,do it, and do it to the hilt”
― Richard P. Feynman

“There is thought, and then there is thinking about thoughts, and they don't feel the same.”
― Susanna Kaysen, Girl, Interrupted