Fear itself is a species of foresight, and in no case exists till introduced by experience.
It has been said that the desire of self-preservation is innate. I demand what is meant by this desire? Must we not understand by it a preference of existence to nonexistence? Do we prefer anything but because it is apprehended to be good ? It follows that we cannot prefer existence, previously to our experience of the motives for preference it possesses. Indeed the ideas of life and death are exceedingly complicated, and very tardy in their formation. A child desires pleasure and loathes pain long before he can have any imagination respecting the ceasing to exist.
Again, it has been said that self-love is innate. But there cannot be an error more easy of detection. By the love of self we understand the approbation of pleasure, and dislike of pain: but this is only the faculty of perception under another name. Who ever denied that man was a percipient being? Who ever dreamed that there was a particular instinct necessary to render him percipient?
Pity has sometimes been supposed an instance of innate principle; particularly as it seems to arise with greater facility in young persons, and persons of little refinement, than in others. But it was reasonable to expect that threats and anger, circumstances that have been associated with our own sufferings, should excite painful feelings in us in the case of others, independently of any laboured analysis. The cries of distress, the appearance of agony or corporal infliction, irresistibly revive the memory of the pains accompanied by those symptoms in ourselves. Longer experience and observation enable us to separate the calamities of others and our own safety, the existence of pain in one subject and of pleasure or benefit in others, or in the same at a future period, more accurately than we could be expected to do previously to that experience.