By working voluntarily while traveling, travelers may make a real, positive impact on the world.

通过在旅行中从事志愿工作，旅行者可能会对世界产生真正积极的影响。

I think it's a really important sort of mechanism to have a real positive, cathartic conversation within our society about disability.

我认为这是一种非常重要的机制，在我们的社会中对残疾进行真正积极的，宣泄性的对话。

They provide the real positive influences in my life, as I hope I can provide a positive influence in theirs as well.

他们给我的生活提供了 真正的积极的影响，当然同时我也希望同样能给 他们的生活提供正能量。

Now, that was all a very long time ago, but as I've prepared for this talk, I've revisited some of the stories that I have covered, where these really unusual collaborations made a real positive difference.

现在，那是很久以前的事了，但在我为这次演讲做准备时， 我重新审视了我讲过的一些故事，这些非常不寻常的合作产生了真正积极的影响。