"Every ecosystem, even a small one, is sustainable because it has certain ensembles and conditions and influences that are unique to it. And the biological ensembles are almost certainly, even the most modest ones, in the thousands of species. We don't know what's involved in the models - not even the beginnings. And yet we're trying to make a sustainable world, which has to include the natural world. The human species is triumphant, but it's got to get a grip. It's got to come to understand what's happened, why we're this way and what we're doing."

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One of the most effective strategies to make your child more self-control is the weekly giving of allowance or pocket money as an opportunity for parents to teach self-control and model self-control. So rather than just handing the child the money and leaving it at that, the parent hands them a modest amount that has to be managed through the week, sits with the child and takes the time to anticipate what's going to be coming up next week, what the child would like to do and helps them to make choices and understand the limited amount of money they have.

— Terrie Moffitt