用你拥有的，在你所在的地方，做你能做的事。

Great engineering solves problems you didn't know you had in ways you don't understand.

"The novel is a form of exploration, a way of asking questions that don't have answers."

数学是一门活生生的学科，随着新思想的出现而不断发展。

Efficiency in forestry doesn't mean cutting more—it means making every tree count.