You can focus on things that are barriers or you can focus on scaling the wall or redefining the problem.

You can focus on things that are barriers or you can focus on scaling the wall or redefining the problem.

你可以把注意力集中在那些障碍上，或者你可以把注意力集中在跨越障碍或者重新定义问题上。

-- Tim Cook 蒂姆·库克