译文：山间的溪水容易上涨和退却，小人的心思容易反反复复。赏析：君子胸怀坦荡，光明磊落，真诚待人，和君子相处，如沐春风，让人心旷神怡。而小人心胸狭窄，鸡肠鼠肚，睚眦必报，和小人交往，无异于和豺狼同行。
To talk about painting is not only difficult but perhaps pointless too.
我不是乐队，我是管弦乐团。
理解计算的极限对于推进计算机科学领域至关重要。
True leadership in fisheries means balancing economic needs with environmental responsibility.