Sometimes things happen, and your mind cannot comprehend the images your eyes are sending you.

Such was the case Monday, April 15 Patriots Day in Boston, the day the Red Sox take the field in the morning, and the runners take over the city in the afternoon.

Then everything changed.

The bombs that killed and wounded and maimed were heard round the country and have shaken all of us.

The last tragedy seems to cement the fact that if someone wants to hurt us, if someone wants to perform an act of violence and evil, it will happen.

There is no way to protect all of us if someone's intent is to do us harm.

But despite as much as these bombings affect us and scare us and make us wonder what is going on in the world, we cannot let it define us.

There is so much good in the world performed by so many good people that far outweigh the evil perpetrated.

I know at times like this the focus is on how sad and brutal and senseless this attack was.

But if you have watched how the residents of Boston have responded, you can't help but be energized by their resiliency.

Watch a replay of the fans at the Boston Bruins hockey game take over the singing of the national anthem, and I dare you not to get chills.

That's a spirit that may be bowed, but is not broken.

Unfortunately, these types of terroristic acts are becoming more frequent.

Whether it's a gunman ravaging an elementary school, another calling rescue personnel just to shoot them dead or bombs being set off at the Boston Marathon, these types of acts are escalating.

There are a myriad of reasons, and politicians kick them around for personal gain, like the loss of lives is not real.

But those funerals are very real, and the people left behind will never be the same.

But still, despite the heavy hearts, we endure.

We go on because, like one mother said after losing a child in the Newtown, Conn., shooting, what else are we going to do?

We cannot roll over. You get through life by getting up the next day, taking a step and trying to be a little better.

We carry on for ourselves.

We carry on for the ones we love.

We carry on because we're Americans, and that's what we do.

We've all lost someone, whether through disease, naturally or tragedy, and if we hadn't picked ourselves up and gone on, our society would have collapsed long ago.

We know that whatever drives these people to harm others does not represent who we are.

These people do not represent the best of us.

The best of us finds a way to regroup and continue; to try and be a little better every day.

That is why this evil does not deter us. We pause, we grieve, and we keep marching.

The world can be scary, and we worry every time we send our children out in it. But it is our children and their children and so on, who will continue to endure and, hopefully, make the world a little safer, a little better.

God bless America and God bless us.

Patrick Murphy, of Humphrey, Neb., is a former assistant managing editor of The Telegram.