For every dollar you spend purchasing something substantial， expect to pay a dollar in repairs， maintenance， or disposal by the end of its life.

A well-tied tie is the first serious step in life.

Use music to spread positive energy.

没有孩子的民族将面临无望的未来；没有树木的国家将面临更加无望的未来。

以环境为代价的短期收益终将导致长期损失。