Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.

When you get an invitation to do something in the future， ask yourself: would you accept this if it was scheduled for tomorrow？ Not too many promises will pass that immediacy filter.

The present is the past rolled up for action, and the past is the present unrolled for understanding.

Modern quarrying must marry the wisdom of geology with the innovation of engineering.

以往的事过去了便不再重提，现在的事做一件有一件的功劳，未来的事情省一件便省去许多麻烦。