He said: “Having spent many years, with very limited success, trying to help people change behavior that was damaging to them and others, I found it remarkable to see how dramatically people could change for the better.
وتؤيد نتائج دراسات كهذه المبدأ الذي ذكره يسوع :‏ « السعادة في العطاء اكثر منها في الاخذ » .‏ —‏ اعمال ٢٠ :‏ ٣٥‏ .‏