what are the author and the articles for the sentense "Pity the
scientist who is disbelived for one life after a hundrend trues;
whereas, the astrologer is made a prophet for one truth after a
hundrend lives."

Dear luv_cathybabe,

The original quotation was made by the Italian historian and statesman
Francesco Guicciardini (1483?1540). In his 1529 book "Ricordi politici
e civili" ("Political and Civil Memories") he wrote in paragraph LVII:

"Quanto sono piú felici gli astrologi che gli altri uomini! Quelli
dicendo tra cento bugie una verità, acquistano fede in modo che è
creduto loro el falso; questi dicendo tra molte verità una bugia, la
perdono in modo che non è piú creduto loro el vero."

Translation:
"How much luckier than all the rest of mankind are the astrologers! If
they tell one truth among a hundred lies, they obtain so much credit
that even their lies are believed. Whereas those who say between much
more truth one lie lose all credit."

The full text of "Ricordi politici e civili" can be found here:
http://digilander.libero.it/bepi/biblio3a/ricordi.html
(De Bibliotheca: Ricordi politici e civili)


Sources:

Ambedkar.org: True lies - Is astrology a science?
http://www.ambedkar.org/News/Truelies.htm

The Last Word: Beliefs and Superstitions
http://home.comcast.net/~ghaff/lword/religion.html

AllRefer Encyclopedia: Francesco Guicciardini
http://reference.allrefer.com/encyclopedia/G/Guicciar.html

Search terms used:
astrologer scientist lie truths lies truth
://www.google.de/search?hl=de&ie=UTF-8&oe=UTF-8&newwindow=1&q=astrologer+scientist+lie+truths+lies+truth&meta=
"hundred lies" "one truth"
://www.google.de/search?q=%22hundred+lies%22+%22one+truth%22&hl=de&lr=&ie=UTF-8&oe=UTF-8&newwindow=1&start=0&sa=N
"francesco Guicciardini" cento verità bugia
://www.google.de/search?hl=de&ie=UTF-8&oe=UTF-8&newwindow=1&q=%22francesco+Guicciardini%22+cento+verit%C3%A0+bugia&btnG=Google+Suche&meta=
"one truth to a hundred lies"
://www.google.de/search?hl=de&ie=UTF-8&oe=UTF-8&newwindow=1&q=%22one+truth+to+a+hundred+lies%22&btnG=Google+Suche&meta=
"Ricordi politici e civili"
://www.google.de/search?hl=de&ie=UTF-8&oe=UTF-8&newwindow=1&q=%22Ricordi+politici+e+civili%22&btnG=Google+Suche&meta=


Hope this answers your question!
Regards,
Scriptor