Similarly, the baby's reaching for random objects, and sucking them when seized, its turning its head aside, when it has had enough food, its crying when alone and hungry, are not, for the most part, deliberate methods invented by the infant to maintain its own welfare, but are almost as automatic as the number of sounds omitted by the cuckoo clock at midnight. Why do men always lie down, when they can, on soft beds rather than on hard floors? Why do they sit round the stove on a cold day? ... Why does the maiden interest the youth so that everything about her seems more important and significant than anything else in the world? Nothing more can be said than that these are human ways, and that every creature _likes_ its own ways, and takes to the following of them as a matter of course.... Not one man in a billion, when taking his dinner, thinks of utility. He eats because the food tastes good, and makes him want more. If you ask him _why_ he should want to eat more of what tastes like that, instead of revering you as a philosopher, he will probably laugh at you for a fool.[1] [Footnote 1: James: _Psychology_, vol. II, p. 386.] These inborn tendencies to act vary in complexity from the withdrawing of a hand from a hot stove or the jerking of the knee when touched in a particular spot to startlingly involved trains of action to be found in the behavior of certain of the lower animals. Bergson cites the case of a species of wasp which with a skill, unconscious though it be, resembling that of the expert surgeon, paralyzes a caterpillar without killing it, and carries it home for food for its young.[2] There are again many cases of "insects which invariably lay their eggs in the only places where the grubs, when hatched, will find the food they need and can eat, or where the larvae will be able to attach themselves as parasites to some host in a way that is necessary to their survival."[3] In many instances these complicated trains of action are performed by the animal in a situation absolutely strange to it, without its ever having seen the act performed before, having been born frequently after its parents had died, and itself destined to die long before its grubs will have hatched. [Footnote 2: Bergson: _Creative Evolution_, p. 172.] [Footnote 3: McDougall: _Social Psychology_, p. 24. (Except where otherwise noted, all references are to the fourth edition.)]