the parts of the whole

they say that the whole is more than the simple sum of all its parts. well, sometimes one of the parts is more important than the whole itself, but still, generally speaking, i agree with this idea. so, the whole is made of its individual parts and the unique connections between them (and sometimes something else which, due to its evanescent nature, it's not easy to define). and if we want to evaluate the whole, we must see the whole picture; if we take into consideration only one of the parts (the one that interest us the most), our view of the whole will be biased, and we can bid the understanding farewell.