It never dawned on me at any particular time of my life that people are paid tremendous money to sing.
“I know you've been married to the same woman for 69 years. That is marvellous. It must be very inexpensive.”
“For both reasons, owing to the thermal motion and to the working together of various wavelengths, factors arise which, in a similar manner to the structural factor, exert some influence upon the brightness of the interference points but not upon their location.”