10,000 hours of deliberate practice is one of the useful theories I've encountered http://www.psychologytoday.com/files/u81/Ericsson__Roring__and_Nandagopal__2007_.pdf<p>http://psycnet.apa.org/index.cfm?fa=search.displayRecord&uid=1993-40718-001<p>Are there any other theories you would add to this list ?<p>Any theories related to the following framework would be useful too<p>http://en.wikipedia.org/wiki/File:P21_Skills.jpg<p>http://www.p21.org/overview/skills-framework<p>http://www.p21.org/storage/documents/P21_Framework_Definitions.pdf
Don't know if this is what you're looking for, or if it counts as scientific or Buddhist, but:<p>The immense scale of the universe. The sheer size of it gives me both hope, in that there's so much out there to learn and discover, and calmness, in that my problems are petty and not worth getting upset about. Reading about astronomical and physics theories sparks this feeling.