"How can a man have scruples when it's only Chance that's king? There's nothing certain, nothing preordained. We should live as carefree as we may." - from book

"What should a man fear? It's all chance, chance rules our lives. Not a man on earth can see a day ahead, groping through the dark. Better to live at random, best we can. " - from the earliest translation

Both of this quotes are saying the same thing. However it is much easier to understand the second quote from the earliest translation (atleast for me it is). The quote is telling us that we should live our lives as if the today was our last day . We shouldn't think so much about what could happen tomorrow and we certainly should not fear life because anything can happen and fearing it won't prevent what needs to happen. It is better to go with the flow of each and every day and leave the worries aside !