In our monogamous part of the world, to marry means to halve one’s rights and double one’s duties. - Arthur Schopenhauer

Marrying means to halve one's rights and double one's duties

The more distinctly a man knows, the more intelligent he is, the more pain he has; the man who is gifted with genius suffers most of all.

However, the struggle with that sentinel is, as a rule, not so hard as it may seem from a long way off, mainly in consequence of the antagonism between the ills of the body and the ills of the mind. If we are in great bodily pain, or the pain lasts a long time, we become indifferent to other troubles; all we think about is to get well. In the same way great mental suffering makes us insensible to bodily pain; we despise it; nay, if it should outweigh the other, it distracts our thoughts, and we welcome it as a pause in mental suffering. It is this feeling that makes suicide easy; for the bodily pain that accompanies it loses all significance in the eyes of one who is tortured by an excess of mental suffering. This is especially evident in the case of those who are driven to suicide by some purely morbid and exaggerated ill-humor. No special effort to overcome their feelings is necessary, nor do such people require to be worked up in order to take the step; but as soon as the keeper into whose charge they are given leaves them for a couple of minutes, they quickly bring their life to an end.
When, in some dreadful and ghastly dream, we reach the moment of greatest horror, it awakes us; thereby banishing all the hideous shapes that were born of the night. And life is a dream: when the moment of greatest horror compels us to break it off, the same thing happens.

The animals are much more content with mere existence than we are; the plants are wholly so; and man is so according to how dull and insensitive he is. The animal’s life consequently contains less suffering but also less pleasure than the human’s, the direct reason being that on the one hand it is free from care and anxiety and the torments that attend them, but on the other is without hope and therefore has no share in that anticipation of a happy future which, together with the enchanting products of the imagination which accompany it, is the source of most of our greatest joys and pleasures. The animal lacks both anxiety and hope because its consciousness is restricted to what is clearly evident and thus to the present moment: the animal is the present incarnate.