As aquatic scientists, we have all seen a pebble, a water droplet, or a rising fish make a ripple in pond. The pebble is small, perhaps the splash is small, but the concentric circles of ripples extend out and out and out . broadly spreading the impact of that one pebble. That ripple effect, or expanding impact, is a metaphor I’d like you to keep in mind. My intent is to illustrate how an individual's impact can go far beyond their individual actions if they assess where and how to devote their efforts.

中文翻译：

---

制造涟漪：个人行为如何促成大规模效应

作为水生科学家，我们都见过一颗鹅卵石、一滴水或一条上升的鱼，在池塘里掀起涟漪。鹅卵石虽小，或许溅起的水花很小，但一圈圈的涟漪却是一圈一圈的向外延伸。广泛传播那一颗卵石的影响。这种涟漪效应或扩大的影响是我希望你记住的一个比喻。我的目的是说明如果一个人评估在哪里以及如何付出努力，他们的影响将如何远远超出他们的个人行为。