The work of art is a trace of the invisible.

Success is not the key to happiness. Happiness is the key to success.

我只希望在自己衰老前退休，否则我只会成为累赘。

Your work will be endless， but your time is finite. You cannot limit the work so you must limit your time. Hours are the only thing you can manage.

Language is a virus from outer space.

采矿业的创新不是可选的-它对我们未来至关重要。