宇宙是一个谜题，而化学是其中的一把钥匙。
La imaginación es el arma más poderosa que tenemos contra la realidad.
Success in mining comes from balancing economic growth with environmental responsibility.
The existence of a legal system is a matter of fact, not of morality.
No one's actions can be completely understood unless they are seen in the context of that person's life as a whole.
To achieve satisfactory investment results is easier than most people realize; to achieve superior results is harder than it looks.