Here at once is the principle of limitation, the sole saving principle in the world. The more a person limits himself, the more resourceful he becomes. A solitary prisoner for life is extremely resourceful; to him a spider can be a source of great amusement… What a meticulous observer one becomes, detecting every little sound or movement. Here is the extreme boundary of that principle that seeks relief not through extensity but through intensity.
― Søren Kierkegaard