He slowly opened the package with carefulness.

　　他慢慢地小心地打開包裝。

　　This is a job required more responsibility and carefulness.

　　這是一個需要更多責任心和細心去完成的工作。

　　Scientific experiments call for endless patience and carefulness.

　　科學實驗要求有無限的耐心和細致。

　　Yes, I would add that scientists should have great patience and carefulness.

　　是的，我要補充的是科學家具有很大的耐心和細心。