Time is a slippery thing: lose hold of it once, and its string might sail out of your hands forever.

许多人害怕改变，但是如果把它视作天经地义的事，也就释然了。

The work of art is the result of a struggle between the artist and his material.

只有通过强制执行方法的标准化、强制执行最佳工具和工作条件的采用以及强制执行合作，才能确保更快的工作。