His rejection
of independently existing substance in favor
of a
universe in which all entities are related, the idea
of actual entities as valuing subjects prehending and creating themselves Out
of the feelings
of other subjects, the declaration that the most basic form
of order is
aesthetic, and the insistence that the lure toward beauty and adventure is a primary drive in the process
of reality, are all examples
of Whitehead's fundamental insight that to be is to be related, to exhibit some degree
of beauty in those relationships, and to have the power both to affect and to be affected.