We have all a better guide in ourselves, if we would attend to it, than any other person can be.
Love children especially, for they too are sinless like the angels; they live to soften and purify our hearts and, as it were, to guide us.
I have but one lamp by which my feet are guided; and that is the lamp of experience. I know way of judging the future but by the past.
Artemis: (shocked) Why, Doctor? This is a sensitive area. For all you know I could be suffering from depression. Doctor Po: I suppose you could. Is that the case? Artemis: (head in hands) It's my mother, Doctor. Doctor Po: Yes? Artemis: My mother, she... Doctor Po: Your mother, yes? Artemis: She forces me to endure this ridiculous therapy when the school's so-called counsellors are little better than misguided do-gooders with degrees.
The Guide says there is an art to flying", said Ford, "or rather a knack. The knack lies in learning how to throw yourself at the ground and miss.
You'll have a good, secure life when being alive means more to you than security, love more than money, your freedom more than public or partisan opinion, when the mood of Beethoven's or Bach's music becomes the mood of your whole life … when your thinking is in harmony, and no longer in conflict, with your feelings … when you let yourself be guided by the thoughts of great sages and no longer by the crimes of great warriors … when you pay the men and women who teach your children better than the politicians; when truths inspire you and empty formulas repel you; when you communicate with your fellow workers in foreign countries directly, and no longer through diplomats...
Rules are just helpful guidelines for stupid people who can't make up their own minds.
One of the major problems encountered in time travel is not that of becoming your own father or mother. There is no problem in becoming your own father or mother that a broad-minded and well-adjusted family can't cope with. There is no problem with changing the course of history—the course of history does not change because it all fits together like a jigsaw. All the important changes have happened before the things they were supposed to change and it all sorts itself out in the end. The major problem is simply one of grammar, and the main work to consult in this matter is Dr. Dan Streetmentioner's Time Traveler's Handbook of 1001 Tense Formations. It will tell you, for instance, how to describe something that was about to happen to you in the past before you avoided it by time-jumping forward two days in order to avoid it. The event will be descibed differently according to whether you are talking about it from the standpoint of your own natural time, from a time in the further future, or a time in the further past and is futher complicated by the possibility of conducting conversations while you are actually traveling from one time to another with the intention of becoming your own mother or father. Most readers get as far as the Future Semiconditionally Modified Subinverted Plagal Past Subjunctive Intentional before giving up; and in fact in later aditions of the book all pages beyond this point have been left blank to save on printing costs. The Hitchhiker's Guide to the Galaxy skips lightly over this tangle of academic abstraction, pausing only to note that the term "Future Perfect" has been abandoned since it was discovered not to be.
What I am actually saying is that we need to be willing to let our intuition guide us, and then be willing to follow that guidance directly and fearlessly.
The long run is a misleading guide to current affairs. In the long run we are all dead.