To produce the habit of truthfulness should be one of the major aims of moral education. I do not mean truthfulness in speech only, but also in thought; indeed, of the two, the latter seems to me the more important. I prefer a person who lies with full consciousness of what he is doing to a person who first subconsciously deceives himself and then imagines that he is being virtuous and truthful. Indeed, no man who thinks truthfully can believe that it is _always_ wrong to speak untruthfully. Those who hold that a lie is always wrong have to supplement this view by a great deal of casuistry and considerable practice in misleading ambiguities, by means of which they deceive without admitting to themselves that they are lying. Nevertheless, I hold that the occasions when lying is justifiable are few--much fewer than would be inferred from the practice of high-minded men. And almost all the occasions which justify lying are occasions where power is being used tyrannically, or where people are engaged in some harmful activity such as war; therefore in a good social system they would be even rarer than they are now. Untruthfulness, as a practice, is almost always a product of fear. The child brought up without fear will be truthful, not in virtue of a moral effort, but because it will never occur to him to be otherwise. The child who has been treated wisely and kindly has a frank look in the eyes, and a fearless demeanour even with strangers; whereas the child that has been subject to nagging or severity is in perpetual terror of incurring reproof, and terrified of having transgressed some rule whenever he has behaved in a natural manner. It does not at first occur to a young child that it is possible to lie. The possibility of lying is a discovery, due to observation of grown-ups quickened by terror. The child discovers that grown-ups lie to him, and that it is dangerous to tell them the truth; under these circumstances he takes to lying. Avoid these incentives, and he will not think of lying.