4 ms·
This sounds a lot like Martin Seligman's work. https://en.m.wikipedia.org/wiki/Martin_Seligman https://en.m.wikipedia.org/wiki/Martin_Seligman
by pault 9y ago
This sounds a lot like Martin Seligman's work. https://en.m.wikipedia.org/wiki/Martin_Seligman https://en.m.wikipedia.org/wiki/Martin_Seligman