Proof of education is in ... (not in a university degree)

An eminent educationist Cyril Norwood in his speech at the Annual Conference of ASLIB (1935) said firmly, "It is better proof of education to know how to use a library than to possess a university degree." (source) (from the text of the speech)

Also quoted by C.K. Sharma, ‎Kiran Singh - 2005 - ‎Library administration

and cited in Dictionary of Library and Information Science Quotations  

Edited by Mohamed Taher and L S S R Valluri Ramaiah. ISBN: 8185689423 

(New Delhi , Aditya, 1994) (p. 284).