科学家不是给出正确答案的人，而是提出正确问题的人。
People are just as wonderful as sunsets if you let them be. When I look at a sunset, I don't find myself saying, 'Soften the orange a bit on the right hand corner.' I don't try to control a sunset. I watch with awe as it unfolds.
Concerning the gods, I cannot know either that they exist or that they do not exist, nor what form they might have, for there is much to prevent one's knowing: the obscurity of the subject and the shortness of man's life.
The key to survival is preparation. Know your environment and be ready for anything.
Courage is resistance to fear, mastery of fear - not absence of fear.