Three undergraduates got out of the coach.

I asked them why they had so many horses, and they said, "Because of the luggage." I then said, "The luggage is much more than the undergraduates.

Can you tell me how to express this in mathematical symbols?
This is the way: if _x_ is the weight of an undergraduate, then _x_ + _x_.n represents the weight of an undergraduate and his luggage together." I noticed that this sally was received with evident enjoyment.[99] We may say, then, that the structure of our dreams, equally with the fact of their completely illusory character, points to the conclusion that during sleep, just as in the moments of illusion in waking life, there is a deterioration of our intellectual life.

The highest intellectual activities answering to the least stable nervous connections are impeded, and what of intellect remains corresponds to the most deeply organized connections.
In this way, our dream-life touches that childish condition of the intelligence which marks the decadence of old age and the encroachments of mental disease.

The parallelism between dreams and insanity has been pointed out by most writers on the subject.