This does not mean that it is a great virtue to trust everybody. To do this would be making oneself responsible for everyone's purse; it would be taking a great responsibility upon oneself. The Prophet has said, "Tie your camel to the tree, and then trust in God." But if a person developed trust so much that he trusted the camel to space and himself to God, then he would not wish for the camel any more. To trust or not to trust, these different attitudes follow our experience. We gradually gather experience from life, and this experience teaches us whom to trust and whom not to trust. No doubt there are people who distrust everybody, but that is a disease, that is not normal.