解读：一次性快乐稍纵即逝，如短暂刺激；可重复的快乐源于内心充实、自我成长，更值得投入精力，引导追求深度、持久快乐。

科学的进步不仅依赖于知识的积累，还需要有挑战未知的勇气。

The beauty of mathematics lies not only in its ability to describe the world but also in its power to reveal the hidden structures that govern it.

Transparency in aquaculture practices builds trust with consumers and drives long-term success.

解释：曲子高妙，不是人人都能和唱；说出真相，不是人人都能相信。