“Most frequently given of such reasons is the conviction that a general stock market decline of some proportion is somewhere in the offing. In the preceding chapter I tried to show that postponing an attractive purchase because of fear of what the general market might do will, over the years, prove very costly. This is because the investor is ignoring a powerful influence about which he has positive knowledge through fear of a less powerful force about which, in the present state of human knowledge, he and everyone else is largely guessing.”