The preliminary outward movement of thought—holism—is everybit as necessary as the inward, atomizing one and in any investigation it usually needs to… - Mary Midgley

The trouble with words like "fit" in these discussions is that, if taken in a wide sense they are liable to become vacuous, and if taken more narrowly they easily become tendentious. Thus the phrase "survival of the fittest" does not mean much if it means only "survival of those most likely to survive." If on the hand it means "survival of those whom we should admire most" or the like, it describes a different state of affairs; we shall need different arguments to persuade us that this is happening. In just the same way, Wilson equivocates with the notion that to be "fit" is an advantage to anybody. If it means "healthy" or "able to do what he wants to do" then it usually is so. But if it only means "likely to have many descendants," then there is no reason for treating it as an advantage at all.

Many natural patterns, such as the arrangement of buds on a stem, accord with the series of Fibonacci numbers, and Fibonacci spirals are also observed in spiral nebulae. There are, moreover, no flying pigs …

Creatures really have divergent and conflicting desires. Their distinct motives are not (usually) wishes for survival or for means-to-survival, but for various particular things to be done and obtained while surviving. And these can always conflict. Motivation is fundamentally plural. It must be so because, in evolution, all sorts of contingincies and needs arise, calling for all sorts of different responses. An obsessive creature, constantly dominated by one kind of motive, would not survive.