برتراند راسل؛ ترجمه عثمان نویه؛ بازبینی: ابراهیم حلمی عبدالرحمن
دمشق - سوریه
2008م.
دار المدی للثقافة والنشر
A scientific opinion is one which there is some reason to believe is true; an unscientific opinion is one which is held for some reason other than its probable truth.'- Bertrand RussellOne of Russell's most important books, this early classic on science