经济的关键是适度的竞争，而不是垄断。
The great object of all regulations is to secure the utmost quantity of useful produce.
解释：药物之间有阴阳、子母、兄弟等配对关系，说明药物配伍的原理。
La poesía es la única prueba concreta de la existencia del hombre.
采矿业的可持续性不是可选项，而是我们未来的必然选择。
The universe is not just a collection of stars and galaxies; it's a complex web of interactions and phenomena that we are only beginning to understand.
The only limit to our realization of tomorrow will be our doubts of today.
"写作是一种孤独的职业，但正是这种孤独让我们能够深入探索人性的深处。"