Foreign Minister Jorge Arreaza of Venezuela addresses the U.N. General Assembly at U.N. headquarters in New York on Sept. 25. (Cia Pak/AP)

Regarding the Sept. 24 Outlook essays "Is Trump mentally ill? Or is America?" by Carlos Lozada, and "Why presidents are destined to fail," the Book World review by Greg Jaffe of Jeremi Suri's "The Impossible Presidency":

When you look at the growth of the world's population and how limited resources and war zones force the exodus of people from their homelands, it feels as if the problems have grown so large as to defy the ability of any single person to meet them with fairness and justice. We ask too much of our individual leaders, even if they have the intelligence, charisma, dedication and talent to help persuade people of the "rightness" of their views.

When problems become intractable, it is common to hunker down in our own small worlds, protecting our self-interests on just about every scale there is: husband/wife; city/state; state/country; country/world. When the world economy isn't holding strong, the problems are exacerbated.

The United Nations was formed to help find solutions through dialogue between and among parties; what seems to be lacking is world leaders with creative vision and the ability to solve problems. We need leaders with some new ideas; obviously the old ones aren't working, and people such as President Trump aren't working, either. One of the problems is that there are too many leaders such as Trump holding sway over the lives of millions of people.

How do we begin to work on solutions, not just react to problems, and who are the people out there with the ability to lead us out of the darkness we have created? I do wish they would stand up and let their voices be heard.

Kay Plitt, Arlington