“Bad circumstances have a way of ruining things that would otherwise be pleasant.”

“One of the remarkable things about love is that, despite very irritating people writing poems and songs about how pleasant it is, it really is quite pleasant.”

“Stealing, of course, is a crime, and a very impolite thing to do. But like most impolite things, it is excusable under certain circumstances. Stealing is not excusable if, for instance, you are in a museum and you decide that a certain painting would look better in your house, and you simply grab the painting and take it there. But if you were very, very hungry, and you had no way of obtaining money, it would be excusable to grab the painting, take it to your house, and eat it.”

“Optimist" is a word which here refers to a person, such as Phil, who thinks hopeful and pleasant thoughts about nearly everything. For instance, if an optimist had his left arm chewed off by an alligator, he might say, in a pleasant and hopeful voice, "Well, this isn't too bad. I don't have my left arm anymore, but at least nobody will ever ask me whether I am right-handed or left-handed," but most of us would say something more along the lines of "Aaaaah! My arm! My arm!”

“If an optimist had his left arm chewed off by an alligator, he might say in a pleasant and hopeful voice, "Well this isn't too bad, I don't have a left arm anymore but at least nobody will ever ask me if I'm left-handed or right-handed," but most of us would say something more along the lines of, "Aaaaaa! My arm! My arm!”

“There is no way of knowing for sure whether or not you can trust someone, for the simple reason that circumstances change all of the time.”

“It is true, of course, that there is no way of knowing for sure whether or not you can trust someone, for the simple reason that circumstances change all of the time. You might know someone for several years, for instance, and trust him completely as your friend, but circumstances could change and he could become very hungry, and before you knew it you could be boiling in a soup pot, because there is no way of knowing for sure.”