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To both the left and the right: Grow up.

"If you look beyond the downtown venues programing mostly work from out of town, you can find there's a lot of creative and adventurous theater happening this fall," Wesley Hortenbach writes.

"Too few Americans appear to grasp that the president's demonization of any opposition not only threatens our democracy but also endangers our security abroad," Trudy Rubin writes.

"For more than seven years, you have failed our neighborhood by refusing to meaningfully address the poverty, drug epidemic and resulting encampments that exist in our community," Cat and Nicole Salonek Schladt write.

There's one use of guns "that's much more prevalent in rural than urban areas, and should be an important part of gun policy discussion: self-harm," Rich Cowles writes.

The shooter chose bullets over persuasion.

"This was about an individual completely psychologically lost and apparently lost to those who might have been able to help," Brandon Ferdig writes.

ATVs have " no crash testing or airbags, limited suspension and tires designed to grab rough terrain rather than maintain traction on pavement," Aaron Brown writes.

Gut feelings won't save us.

"Let us model for our children," David Motzenbecker writes, "the virtues of wisdom, courage, justice and self-control in our pursuit of change on their behalf."