Wonder [admiratio astonishment, marvel] is a kind of desire for knowledge. The situation arises when one sees an effect and does not know its cause, or when the cause of the particular effect is one that exceeds his power of understanding. Hence, wonder is a cause of pleasure insofar as there is annexed the hope of attaining understanding of that which one wants to know. . . . For desire is especially aroused by the awareness of ignorance, and consequently a man takes the greatest pleasure in those things which he discovers for himself or learns from the ground up.
Lying is a crime the least liable to variation in its definitions. A child will upon the slightest temptation tell an untruth as readily as the truth. That is, as soon as he can suspect that it will be to his advantage; and the dread that he afterward has of telling a lie is acquired principally by his being threatened, punished, and terrified by those who detect him in it, till at length, a number of painful impressions are annexed to the telling of an untruth, and he comes even to shudder at the thought of it.
Gratitude is a virtue that has commonly profit annexed to it.