[...] Without any underlying symmetry properties, the job of proving interesting results becomes extremely unpleasant. The enjoyment of one's tools is an essential ingredient of successful work.
Vol. II, Seminumerical Algorithms, Section 4.2.2 part A, final paragraph [Italics in source]
The Art of Computer Programming (1968–2011)
Quotes from book
The Art of Computer Programming
The Art of Computer Programming is a comprehensive monograph written by computer scientist Donald Knuth that covers many kinds of programming algorithms and their analysis.
“Random numbers should not be generated with a method chosen at random”
Vol. II, Seminumerical Algorithms
The Art of Computer Programming (1968–2011)
“An algorithm must be seen to be believed.”
Vol. I, Fundamental Algorithms, Section 1.1 (1968)
The Art of Computer Programming (1968–2011)
Source: Leaders in Computing: Changing the digital world
“Trees sprout up just about everywhere in computer science…”
Vol. IV - A, Combinatorial Algorithms, Section 4.2.1.6 (2011)
The Art of Computer Programming (1968–2011)