Eternity

“Humankind cannot gain something without first giving something in return. To obtain, something of equal value must be lost. This is Alchemy's First Law of Equivalent Exchange. In those days, we really believed that to be the world's one, and only, truth.”
― Hiromu Arakawa, Fullmetal Alchemist, Vol. 1

“If you make a wish and if you keep on making the same wish, it will be granted. That's how strong human wishes are.”
― Clamp, xxxHOLiC, Vol. 13

“Everyone has a right to pursue a happy life. The difficult part is to be given that right.”
― Ryukishi07

“It is very easy to destroy something. And very difficult to repair it again. Magic is much the same way. Magic that destroys and kills is very simple to master. Weak witches who fall victim to the temptations of easy power, therefore, grow lax in their study of true magic. The true magic is the ability to repair. The power to revive. That which calls back joy that has been shattered. That which brings back warmth to love gone cold. […] The world of humanity is full of separation, loss, and mourning. Everyone lives their lives seeking the means to evade or bear that sadness. But for a witch with the power to endlessly regenerate, any concept of destruction or decay no longer applies. The Endless Witch is free of all worldly suffering, certain of eternal bliss.”
― Ryukishi07, Umineko WHEN THEY CRY Episode 3: Banquet of the Golden Witch, Vol. 1