Reason is, and ought only to be the slave of the passions, and can never pretend to any other office than to serve and obey them.
Mining enterprises should focus on comprehensive resource utilization and improve resource efficiency.
"Man is the only creature who refuses to be what he is."
Not hammer-strokes, but dance of the water sings the pebbles into perfection。
无限的概念不仅仅是一个数学抽象,而是一个物理现实。