It is almost impossible for me to read contemporary mathematicians who, instead of saying Petya washed his hands, write simply: There is a such that the image of under the natural mapping belongs to the set of dirty hands, and a, such that the image of under the above-mentioned mapping belongs to the complement of the set defined in the preceding sentence.
"Conversation with Vladimir Igorevich Arnol'd" (Arnold interviewed by Smilka Zdravkovska), The Mathematical Intelligencer, December 1987, Volume 9, Issue 4, pp 28–32.