The capacity of the human mind for forming and manipulating symbols is what sets us apart from other animals.

在采矿行业中，可持续性不是一种选择，而是我们未来的必需品。

The very definition of the real becomes: that of which it is possible to give an equivalent reproduction... The real is not only what can be reproduced, but that which is always already reproduced.

The true revolutionary is guided by a great feeling of love.

追求真理是人类最高尚的事业。