意思就是如果你希望大家做好某件事情，你要第一个先作到，这样才能带动大家的积极性。

It means you are the first man when doing everything,a model.

淡淡的味道，回答的已经很好了。我就举个例子:保护环境，从我做起。

你希望大家都要做某事的话，你要先做，然后才能带动大家一起做。这个时候你就是“从我做起” .If you hope other people to do something, you have to start to do it first,then other people will follow you (hope you understand my English)

It means one can not just tell others to do something like protect the environment,etc., one should do it on oneself. It's just some kind of outdated motto,which sounds silly.