It's a wonderful thing to be optimistic. It keeps you healthy and it keeps you resilient.
Daniel KahnemanA general limitation of the human mind is its imperfect ability to reconstruct past states of knowledge, or beliefs that have changed. Once you adopt a new view of the world (or any part of it), you immediately lose much of your ability to recall what you used to believe before your mind changed.
Daniel KahnemanWe are far too willing to reject the belief that much of what we see in life is random.
Daniel Kahneman