The mining industry must evolve to meet the demands of a changing world.

The dialogue between old and new is what gives a city its richness.

真相如太阳，无法永远隐藏。

史记

"In every brushstroke lies the history of centuries."

It is indeed an opinion strangely prevailing amongst men， that houses， mountains， rivers， and in a word all sensible objects， have an existence， natural or real， distinct from their being perceived by the understanding.

At a restaurant do you order what you know is great， or do you try something new？ Do you make what you know will sell or try something new？ Do you keep dating new folks or try to commit to someone you already met？ The optimal balance for exploring new things vs exploiting them once found is: 1/3. Spend 1/3 of your time on exploring and 2/3 time on deepening. It is harder to devote time to exploring as you age because it seems unproductive， but aim for 1/3.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.