柠檬不必羡慕西瓜的甜
[níng méng bù bì xiàn mù xī guā de tián]
'Lemon doesn’t need to envy the sweetness of watermelon' conveys that every entity possesses unique characteristics which make it special. Being different is normal, everyone has its own strengths just as lemons don’t need to try hard at imitating watermelons.