They have toiled and excelled in the classroom. Struggled and triumphed on the playing field. Wrestled with self-doubt, disability, depression and scorn from others to meet challenges head on and succeed.

This month, thousands of young Mainers are making one of life’s great transitions at high school graduations across the state. Here are the stories of 10 remarkable members of the class of 2015 and their journeys so far.

We asked area high school administrators to identify seniors who, because of heart, talent or toughness, are likely to make a difference in the world. Then we narrowed the list and, in keeping with the selfie generation, asked the grads to take out their smartphones and send us a personal photo.

They include three children of immigrants and several social activists. Their career goals include preaching, teaching and healing people. They have already accomplished and overcome much – including poverty and homelessness – to earn their diplomas. And they want to do more.