Homo Deus II

Since there is no script, and since humans fulfil no role in any great drama, terrible things might befall us and no power will come to save us, or give meaning to our suffering. There won't be a happy ending, or a bad ending, or any ending at all. Things just happen, one after the other. The modern world does not believe in purpose, only in cause. If modernity has a motto, it is 'shit happens'. 

on the other hand, if shit just happens, without any binding script or purpose, then humans too are not limited to any pre-determined role. We can do anything we want - provided we can find a way. We are constrained by nothing except our own ignorance. Plagues and droughts have no cosmic meaning - but we can eradicate them. Wars are not a necessary evil on the way to a better future - but we can make peace. No paradise awaits us after death - but we can create paradise here on earth,  and live in it for ever, if we just manage to overcome some technical difficulties. 

Homo Deus, pp. 200-201, Yuval Noah Harari.