The rocks we extract tell Earth's story; we're just temporary custodians of this legacy.

The most beautiful people are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths.

The future of mining lies in sustainability and technology.

Three passions， simple but overwhelmingly strong， have governed my life: the longing for love， the search for knowledge， and unbearable pity for the suffering of mankind.

There is danger from all men. The only maxim of a free government ought to be to trust no man living with power to endanger the public liberty.

"Literature is the mirror of society, reflecting its virtues and vices."

It is not unlikely, but that there may be yet invented several other helps for the eye, as much exceeding those already found, as those do the bare eye.