Reason deserves to be called a prophet; for in showing us the consequence and effect of our actions in the present, does it not tell us what the future will be? This is precisely why reason is such an excellent power of restraint in moments when we are possessed by some base passion, some fit of anger, some covetous desire, that will lead us to do things whereof we must presently repent.
Hatred comes from the heart; contempt from the head; and neither feeling is quite within our control. For we cannot alter our heart; its basis is determined by motives; and our head deals with objective facts, and applies to them rules which are immutable. Any given individual is the union of a particular heart with a particular head.
Hatred and contempt are diametrically opposed and mutually exclusive. There are even not a few cases where hatred of a person is rooted in nothing but forced esteem for his qualities. And besides, if a man sets out to hate all the miserable creatures he meets, he will not have much energy left for anything else; whereas he can despise them, one and all, with the greatest ease. True, genuine contempt is just the reverse of true, genuine pride; it keeps quite quiet and gives no sign of its existence. For if a man shows that he despises you, he signifies at least this much regard for you, that he wants to let you know how little he appreciates you; and his wish is dictated by hatred, which cannot exist with real contempt. On the contrary, if it is genuine, it is simply the conviction that the object of it is a man of no value at all. Contempt is not incompatible with indulgent and kindly treatment, and for the sake of one's own peace and safety, this should not be omitted; it will prevent irritation; and there is no one who cannot do harm if he is roused to it. But if this pure, cold, sincere contempt ever shows itself, it will be met with the most truculent hatred; for the despised person is not in a position to fight contempt with its own weapons.
Melancholy is a very different thing from bad humor, and of the two, it is not nearly so far removed from a gay and happy temperament. Melancholy attracts, while bad humor repels.
Hypochondria is a species of torment which not only makes us unreasonably cross with the things of the present; not only fills us with groundless anxiety on the score of future misfortunes entirely of our own manufacture; but also leads to unmerited self-reproach for what we have done in the past.
Hypochondria shows itself in a perpetual hunting after things that vex and annoy, and then brooding over them. The cause of it is an inward morbid discontent, often co-existing with a naturally restless temperament. In their extreme form, this discontent and this unrest lead to suicide.