“- I'm so busy doing what I must do that I don't have time for what I ought to do... and I never get a chance to do what I want to do!- Son, that's universal. The way to keep that recipe from killing you is occasionally to do what you want to do anyhow.”

“Allie, what do the Stars tell me to do? You know I don't understand the scientific part.”

“I never do anything I don't want to do. Nor does anyone, but in my case I am always aware of it.”

“The very idea that the Chief would let anybody expose himself to danger in his place is-well, I ought to slap your face; that's what I ought to do!”

“My dear, I used to think I was serving humanity . . . and I pleasured in the thought. Then I discovered that humanity does not want to be served; on the contrary it resents any attempt to serve it. So now I do what pleases myself.”

“Do not confuse "duty" with what other people expect of you; they are utterly different. Duty is a debt you owe to yourself to fulfill obligations you have assumed voluntarily. Paying that debt can entail anything from years of patient work to instant willingness to die. Difficult it may be, but the reward is self-respect. But there is no reward at all for doing what other people expect of you, and to do so is not merely difficult, but impossible. It is easier to deal with a footpad than it is with the leech who wants "just a few minutes of your time, please—this won't take long." Time is your total capital, and the minutes of your life are painfully few. If you allow yourself to fall into the vice of agreeing to such requests, they quickly snowball to the point where these parasites will use up 100 percent of your time—and squawk for more! So learn to say No—and to be rude about it when necessary. Otherwise you will not have time to carry out your duty, or to do your own work, and certainly no time for love and happiness. The termites will nibble away your life and leave none of it for you. (This rule does not mean that you must not do a favor for a friend, or even a stranger. But let the choice be yours. Don't do it because it is "expected" of you.)”

“Heroism' often consists in keeping your head in an emergency and doing the best you can with what you have instead of panicking and being shot in the tail. People who fight this way win more battles than do intentional heroes; a glory hound often throws away the lives of his mates as well as his own.”