Summarize this article in one sentence.
If you don't have children in your life regularly, you're missing out on the wonders of seeing the world through new, inquisitive and creative eyes. Children are less prone to willful blindness or inability to see injustices and problems. Just by being around children more, and really listening to them and paying attention to what they do, you can start to uncurl from your crusty shell of cynicism and let yourself become more childlike, playful and creative.  Children can cut through the layers of obfuscation which adults use to excuse stupid decisions, procrastination and inaction. Children also don't mind displaying a sense of awe about the world around them, constantly delighting in new discoveries and in making amazing new connections – between ideas, people and the wider world. Recognize in your time spent with children that we are born as blank slates, not for causing harm or trouble to others. Having a fixed view of human beings as cruel, mean-spirited and selfishly adhering only to what's best for each person is both unhelpful and generally untrue. How often do you ask people to recall the happy memories and what makes them happy now? People love talking about what they care about, what motivates them and what makes them happy and yet it's not always an obvious topic for general conversation. It's really important to provide the space for people to open up about their happy moments – it helps them to articulate in front of an audience what matters most to them (and may thereby inspire them even further) and it will help you to see the lighter, brighter and happier side of the people in your life. There is a plethora of positive, inspiring and uplifting stories about the good that people do each day. Yet, much of this positive news gets buried under the sensational, negative coverage that news media seems to prefer. All the same, it is possible to actively choose to increase your exposure to positive news. For example, you can subscribe to news feeds online that only focus on positive stories. And you can selectively follow social media network friends and fans who deliberately choose to share good news rather than bad and who are regularly sharing inspiring things. Check out such sites as the Good News Network, Happy News, The Huffington Post Good News, or Daily Good. These sorts of sites focus on positive news stories and gather together many kind, caring and warm tales about the good things that human beings do. Whether it's the Red Cross, Doctors Without Borders, the local zoo trying to conserve animals or a faith-based charity, informing yourself about their activities will remind you that people are actively involved in helping others, conserving the environment, restoring the land, caring for animal welfare and lobbying government to make changes that will improve lives and livelihoods. Browse your local bookstore or library shelves for amazing stories about people in the business world who are transforming society at the same time as running a business. Such businesses are changing the way we "do business" and see the world, including in such areas as sharing of information, making games that educate as well as bring enjoyment, selling fair trade or fairly sourced products, producing eco-friendly items and financial projects that help people to borrow for or invest in small projects that benefit many people in local communities. Social entrepreneurs focus heavily on ensuring that their business makes a positive difference in the world.

Summary:
Spend time with children. Ask people to tell you about the happiest moments in their lives. Focus on the good news stories, the stories of great kindness and virtuous actions. Check out your favorite charities online and actually read what their staff and volunteers are doing.