Never underestimate the power of small improvements—they compound over time.

一个好的科学家就像侦探，总是在细节中寻找线索。

Real suffering does not come from outside, but from how we understand it.

解释：兄弟之间虽然会因谗言而起争执，但在遇到外人的侮辱时仍应一致对外。