"Nanda, I do not extol the production of a new existence even a little bit; nor do I extol the production of a new existence for even a moment. Why? The production of a new existence is suffering. For example, even a little [bit of] vomit stinks. In the same way, Nanda, the production of a new existence, even a little bit, even for a moment, is suffering. Therefore, Nanda, whatever comprises birth, [namely] the arising of matter, its subsistence, its growth, and its emergence, the arising, subsistence, growth, and emergence of feeling, conceptualization, conditioning forces, and consciousness, [all that] is suffering. Subsistence is illness. Growth is old age and death. Therefore, Nanda, what contentment is there for one who is in the mother’s womb wishing for existence?"
January 1, 1970
https://en.wikiquote.org/wiki/Philosophical_pessimism