The foregoing signs, though in a strict sense voluntary, cannot however be restrained but with the utmost difficulty when they are prompted by passion. Of this we scarce need a stronger proof, than the gestures of a keen player at bowls. Observe only how he wreaths his body, in order to restore a stray bowl to the right track. It is one article of good breeding, to suppress, as much as possible, these external signs of passion, that we may not in company appear too warm or too interested. The same observation holds in speech. A passion, it is true, when in extreme, is silent[37]; but when less violent, it must be vented in words, which have a peculiar force, not to be equalled in a sedate composition. The ease and trust we have in a confident, encourages us no doubt to talk of ourselves and of our feelings. But the cause is more general; for it operates when we are alone as well as in company. Passion is the cause; for in many instances it is no slight gratification to vent a passion externally by words as well as by gestures. Some passions, when at a certain height, impel us so strongly to vent them in words, that we speak with an audible voice even where there is none to listen. It is this circumstance in passion, that justifies soliloquies; and it is this circumstance that proves them to be natural[38]. The mind sometimes favours this impulse of passion, by bestowing a temporary sensibility upon any object at hand, in order to make it a confident. Thus in the _Winter’s Tale_[39], Antigonus addresses himself to an infant whom he was ordered to expose: Come, poor babe, I have heard, but not believ’d, the spirits of the dead May walk again: if such thing be, thy mother Appear’d to me last night; for ne’er was dream So like a waking. The involuntary signs, which are all of them natural, are either peculiar to one passion or common to many. Every violent passion hath an external expression peculiar to itself, not excepting pleasant passions: witness admiration and mirth. The pleasant emotions that are less vivid, have one common expression; from which we may gather the strength of the emotion, but scarce the kind: we perceive a chearful or contented look; and we can make no more of it. Painful passions, being all of them violent, are distinguishable from each other by their external expressions. Thus fear, shame, anger, anxiety, dejection, despair, have each of them peculiar expressions; which are apprehended without the least confusion. Some of these passions produce violent effects upon the body, such as trembling, starting, and swooning. But these effects, depending in a good measure upon singularity of constitution, are not uniform in all men.