Different geographers and groups of geographers thus tend to have rather different objectives, depending upon their own particular sets of values. If we wish to convert someone to our own view of the objectives of geography, we can only do so via his beliefs. We might play upon his social conscience, for example, and point to the starvation and misery in the streets of Calcutta and seek thereby to convert him to a view of geography that is highly committed to doing something which will be useful in alleviating that starvation and misery. Or we might play upon his aesthetic feeling, take him slowly through the ruins of Rome and convert him to a standpoint that encompasses the ‘feel’ of landscape through time. We cannot, however, destroy his beliefs by logical argument, any more than we can support our own by such argument.