"Those who know in their hearts that they are not really necessary -- and are entirely replaceable-- must inevitably be tempted to misrepresent the nature of their work and build up a false notion of its importance. A further alienation from truth takes place, a further loss of contact with reality. And one thing we can be sure of is that self-deception, whether on the level of the wind and the rain or on that of spiritual reality, must always come up against the real sooner or later, and that its destruction is very painful."