502 SISTER M. OLIVIA 



modern science, thus initiating the unity of philosophy and 

 science so frequently urged by the late Pope Pius XII: 



There is one basic and current question which claims your special 

 attention. We mean the relationship between scientific experi- 

 mentation and philosophy. It is a point on which numerous prob- 

 lems have been raised by recent discoveries and studies. Let Us say 

 at once that, in general, the honest and profound study of scientific 

 problems not only does not tend to contradict the certain principles 

 of the ' perennial philosophy ' but rather receives from it a light 

 which the philosophers themselves probably did not foresee and 

 which in any case they could not have hoped would be so lasting 

 and intense. (Opening session of the Fourth International Tho- 

 mistic Congress, September 14, 1955.) 



Sister M. Olivia, R. S. M. 



Saint Xavier College, 



Chicago, Illinois. 



