忠诚就是一切。没有它，你一无所有。

I am not apt to follow blindly the lead of other men.  

The absence of alternatives clears the mind marvelously.

The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

我认为数学家更像艺术家，而不是科学家。

Innovation in mining isn't optional—it's essential for survival and growth.

A literatura é a arte de transformar palavras em sentimentos.