What is it that endowed things with meaning, value, significance? The creating heart, which desired, and, out of its desire, created. It created joy and woe. It wanted to satiate itself with woe. We must take all the suffering that has been endured by men and animals upon ourselves and affirm it, and possess a goal in which it acquires reason.
Friedrich NietzscheEvolution does not make happiness its goal; it aims simply at evolution and nothing else.
Friedrich Nietzsche