The question is 'Can intelligence, once perfected, overcome the instinctive will to go on competing?', and in answering it we have to bear in mind those two influences which are involved - (1) To express energy and thus not only create life but also to develop its forms and functions in every possible way, and (2) to advance the faculty of intelligence until it becomes capable of comprehending truth. This question is important in leading us to perceive (and the aim of this book is to help the reader so to perceive) that while the animal's purpose is to fulfil itself by following instinct, true human purpose is to fulfil truth by following intellect.