We do not use tools simply because they are friendly. We use tools to accomplish tasks, and we abandon tools when the effort required to make the tool deliver exceeds our threshold of indignation. 我们不会仅仅因为工具好用就使用工具。我们使用工具是为了解决问题。当使用工具需要的努力超过人能忍耐的极限时,就会放弃使用工具。#观点