知道是贤人而不举荐，很危险；知道是善事而不表彰，很危险；知道他能干而不任用，很危险。

Efficiency is the first virtue of engineers.

The best mining leaders are those who can see opportunities where others see only risks.

I think that we communicate only too well, in our silence, in what is unsaid, and that what takes place is a continual evasion, desperate rearguard attempts to keep ourselves to ourselves.

You cannot always control what goes on outside. But you can always control what goes on inside.