It seems to me that if somebody intends to marry and wants to find out 'scientifically' if his choice will probably be successful, then he can be helped, perhaps, by psychology, physiology, eugenics, or sociology, but surely by a science which centres around the word 'probable'.

Third Lecture, Critical Discussion of the Foundations of Probability, p. 94-95 - Probability, Statistics And Truth - Second Revised English Edition - (1957)