Feel free to use it. Just share this presentation if you like. Let's show how other people can be good and act with generosity.

3. * Sonia Lubomirsky’s research, professor at the University of California.

33. http://www.flickr.com/photos/49503062604@N01/485288761/
http://www.flickr.com/photos/23408922@N07/6128304362/
http://www.flickr.com/photos/73491156@N00/1394588888/
http://www.flickr.com/photos/8085704@N05/3650939560/
http://www.flickr.com/photos/14862087@N07/2630959986/
http://www.flickr.com/photos/21617436@N00/271562412/
http://www.flickr.com/photos/14685586@N04/8196130885/
http://www.flickr.com/photos/49462908@N00/4100711403/http://www.flickr.com/photos
/19356123@N04/3296035191/
http://www.flickr.com/photos/45562894@N00/344394465/
http://www.flickr.com/photos/44714686@N03/4623212503/
http://www.flickr.com/photos/35816547@N02/5766223044/
http://www.flickr.com/photos/29964823@N03/4767111232/
http://www.flickr.com/photos/40650893@N04/5026716018/
http://www.flickr.com/photos/35228369@N02/4059212701/
http://www.flickr.com/photos/avardwoolaver/5452712482/sizes/l/in/photostream/