The effects of immigration are often localized and context-specific.
The human mind is so complex and things are so tangled up with each other that, to explain a blade of grass, one would have to make a diagram of the universe.
技术突破不是一蹴而就的，需要长期投入和耐心积累。
释义：当遭受他人的侮辱时，要能做到面不改色，保持常态；察觉到别人的过失，绝不四处宣扬；发现对方的奸诈意图，也不会因愤怒而立即摊牌。真正的关键在于，要将自己的才能与锋芒隐藏起来，耐心等待最适合行动的时机。一个人若立志成为翱翔天际的苍鹰，就不要去参与枝头鸟雀的无谓争斗。
"Every saint has a past, and every sinner has a future."