Without birth and death, and without the perpetual transmutation of all the forms of life, the world would be static, rhythm-less, undancing, mummified.
If we would be angry and not sin, we must be angry at nothing but sin; and we should be more jealous for the glory of God than for any interest or reputation of our own.
After all, what would be "beautiful" if the contradiction had not first become conscious of itself, if the ugly had not first said to itself: "I am ugly"?.
It is not given to human beings, happily for them, for otherwise life would be intolerable, to foresee or to predict to any large extent the unfolding course of events.