终极情境——死亡、机会、罪恶和世界的不确定性——使人面对他存在的现实。

真相往往存在于矛盾中。

【释义】君子的言论，真实可靠且有证据。

生活的目的不是快乐。它是有用、可敬、富有同情心，让你活得有意义且活得好。

A proof of a proposition is a process the nature of which is such as to produce in us a belief in that proposition.

Every challenge in quarry operations is an opportunity to innovate and improve.

The only limit to our realization of tomorrow will be our doubts of today.